Chevy Block Casting Numbers
Use these casting numbers to identify the block you have.
Small Block Casting numbers
Casting Number
Years
CID
Comments
330817
70-80
400
Car & Truck 2 & 4-bolt 3-freeze plugs
355909
75-79
262/305
car & Truck 2-bolt
360851
75-76
262
2-bolt
361979
76-79
305
car & Truck 2-bolt
366245
78-82
350
Bowtie High tin 4-bolt
366286
82
350
Bowtie aluminum 4-bolt siamesed
366287
82
350
Bowtie aluminum 4-bolt siamesed
366299
82
350
Bowtie aluminum 4-bolt
389257
67
302
2-bolt
391436
68-73
307
2-bolt
393288
65-67
283
2-bolt
460703
78
350
4-bolt
460776
76-79
305
Car & Truck 2-bolt
460777
76-79
305
Car & Truck 2-bolt
460778
76-79
305
2-bolt
471511
79-82
267
Car & Truck 2-bolt
3556519
58-61
283
2-bolt
3703524
55
265
car & Corvette no oil filter 2-Bolt
3720991
55-56
265
Car & Truck 2-bolt
3731548
57
283
Car & Truck 2-bolt No side mount
3737737
57-62
283
2-bolt
3737739
57-62
283
2-bolt
3756519
58-62
283
2-bolt
3782870
62-67
327
car & Truck 2-bolt
3789817
62-67
327
2-bolt
3789935
61-66
283
car & Truck 2-bolt
3790721
64-67
327
2-bolt Chevy II Nova Recessed filter
3791362
66-67
327
2-bolt Chevy II Nova Recessed filter
3791363
66-67
327
2-bolt Chevy II Nova Recessed filter
3792563
65
327
2-bolt
3792582
64-65
283
2-bolt
3794226
57-63
283
2-boltTruck
3794460
68-69
327
2-bolt
3814660
68-69
327
2-bolt
3830944
63
327
2-bolt
3834810
65-67
283
car & Truck 2-bolt
3834812
62-63
283
2-bolt
3837739
58-62
283
2-bolt
3849852
57-66
283
car & Truck 2-bolt
3849859
57-66
283
car & Truck 2-bolt
3849935
65-67
283
2-bolt
3858174
64-67
327
car & Truck 2-bolt
3858180
64-67
327
2-bolt
3858618
68-76
350
2 & 4-Bolt
3862194
65-67
283
2-bolt Chevy II Nova Recessed filter
3864812
62-67
283
car & Truck 2-bolt
3892657
64-67
302/327/350
car & Truck 2-bolt
3892659
68-69
327
2-bolt Large journal
3896944
67
283
2-bolt
3896948
66-67
283
2-bolt
3903352
67
327
2-bolt
3914635
68-73
307
car & Truck 2-bolt
3914636
68-73
307
car & Truck 2-bolt
3914638
68
327
2-bolt
3914653
68
307
2-bolt
3914660
68-69
327
car & Truck 2-bolt
3914678
68-79
302/327/350
car & Truck 2-bolt
3931174
68
307
2-bolt Truck
3932371
69-73
307
car & Truck 2-bolt
3932373
69-73
307
car & Truck 2-bolt
3932386
68-74
302-327-350
2 & 4-Bolt
3932388
68-79
350
car & Truck 4-Bolt
3932442
67
350
2-bolt Camaro
3933180
68-69
327
car & Truck Large journal 2-Bolt
3951509
70-80
400
car & Truck 2 & 4-Bolt 2-freeze plugs
3951511
70-80
400
car & Truck 2 & 4-Bolt 3-freeze plugs
3956618
68-79
302/327/350
2 & 4-Bolt
3956632
69-73
307
car & Truck 2-bolt
3959512
62-63
327
2-bolt
3970010
69-79
302/350
car & Truck 2 & 4-Bolt Most common
3970014
68-79
350
car & Truck 2 & 4-Bolt
3970020
69-73
307
car & Truck 2-bolt
3970024
69-73
307
car & Truck 2-bolt
3992386
68-69
327
car & Truck Large journal 2-Bolt
10036033
350
4-bolt Mexico cast Crate engine
10051182
350
Car and Truck 2 & 4-bolt 1 Piece Seal P***enger stick
10051184
86-up
350
Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
10054727
86-up
350
Car & Truck 2-bolt P***enger stick 1-piece seal
10066036
86-up
350
Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
10066038
350
2 & 4-Bolt Mexico cast Crate engine
10090511
90
350
4-bolt LT-5 ZR-1
10125327
93-up
350
Camaro/firebird 2 & 4-bolt LT-1 Reverse cooling Roller cam
10134996
400
4-bolt Bowtie Aluminum 400 Mains/Bore
10153558
91-92
350
4-bolt LT-5 ZR-1
10168588
94-96
265
2-bolt LT-1 Reverse cooling
10199001
93-95
350
4-bolt LT-5 ZR-1
10243878
96-up
305
2-bolt Vortec Roller
10243880
96-up
350
2 & 4-Bolt Vortec Roller
12550592
97-up
350
Crossbolted LS-1 Aluminum
12551364
98 & UP
365
Gen III 6.0L Iron Block. LQ-4 and LQ-9
12559378
97-up
350
Crossbolted LS-1 Aluminum
12559846
97-up
350
Crossbolted LS-1 Aluminum
12560621
97-up
350
Crossbolted LS-1 Aluminum
12560629
97-up
350
Crossbolted LS-1 Aluminum
12561168
97-up
350
Crossbolted LS-1 Aluminum
12561358
99 & UP
293/325
Gen III 4.8L and 5.3L Iron Block.
12562174
97-up
350
Crossbolted LS-1 Aluminum
12573581
98 & UP
365
Gen III 6.0L Iron Block. LQ-4 and LQ-9
12577184
98 & UP
365
Gen III 6.0L Iron Block. LQ-4 and LQ-9
14010201
80-85
305
car & Truck 2-bolt P***enger stick
14010202
80-85
305
car & Truck 2-bolt P***enger stick
14010203
80-85
305
car & Truck 2-bolt P***enger stick
14010205
80-82
267
car & Truck 2-bolt P***enger stick
14010207
80-85
350
car & Truck 2 & 4-Bolt P***enger stick
14010209
80-85
350
car & Truck 2 & 4-Bolt P***enger stick
14010280
80-82
267
car & Truck 2-bolt P***enger stick
14010287
80-82
350
2-bolt P***enger stick
14011064
80-85
350
4-bolt P***enger stick
14011148
87-89
350
2 & 4-Bolt Roller cam one piece seal
14016376
80-82
267
2-bolt P***enger stick
14016379
77-79
350
2 & 4-Bolt
14016379
77-79
267
2-bolt ***stick in pan
14016381
76-85
305
car & Truck 2-bolt P***enger stick After 79
14016382
80-85
305
2-bolt P***enger stick
14016383
80-85
305
2-bolt Truck
14079287
86-90
350
2-bolt P***enger stick one piece seal
14088526
87-89
350
2-bolt Roller cam P***enger stick 1-piece seal
14088548
86-88
350
2-bolt Truck P***enger stick 1-piece seal
14088551
86-88
305
Car & Truck 2-bolt P***enger stick 1-piece seal
14093627
87-88
305
Car & Truck 2-bolt P***enger stick 1-piece seal
14093638
87-95
350
Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
14094766
86-up
305
2-bolt P***enger stick one piece seal
14101147
86-up
305
2-bolt P***enger stick one piece seal
14101148
86-up
350
2 & 4-Bolt P***enger stick 1-Piece seal Roller cam
14102058
86-88
305
Car & Truck 2-bolt P***enger stick 1-piece seal
14316379
68-88
350
Car & Truck 2-bolt P***enger stick 1-piece seal

Big Block Casting numbers
Casting Number
Years
CID
Comments
340220
72-76
427
Truck Tall deck
345014
74-86
454
Truck
346236
74-76
454
2-bolt
359070
74-90
454
Truck
361959
73-85
454
Car & Truck
364776
68-84
427
Truck Tall deck
364779
68-88
366
Truck Tall deck
399204
70-71
509
4-Bolt Aluminum Can-AM
399289
73-79
454
2-bolt
399293
77-78
366
Truck
473478
68-84
427
Truck Tall deck
3716362
396
3732755
59-61
348
3732811
58
348
3751872
58
348
3755011
59-61
348
3771705
59-61
348
3782012
58-61
348
3782870
68-76
427
Truck Tall deck
3788068
62
409
3795623
61
409
3798962
62-65
348
Truck
3815707
58-61
348
3824553
66-67
366
Truck
3830814
63
409
3839752
62-63
409
3839754
65
409
3844422
64
409
3855961
66-67
396
2-bolt
3855962
65-66
396
4-Bolt
3855977
65-67
366
Truck Tall deck
3857651
409
Marine
3857655
62-65
348
Truck
3857656
65
409
3857658
409
Marine
3860386
62-64
409
3860387
58
348
3869942
66-67
427
2 & 4-Bolt
3873858
66
396
4-Bolt
3902406
67
396
2 & 4-Bolt
3902466
65-67
396
3904351
67
427
2 & 4-Bolt
3904354
66-67
366
Truck Tall deck
3916319
68-85
366
Truck Tall deck
3916321
68
427
2 & 4-Bolt
3916323
68
396
2 & 4-Bolt
3918319
66-70
366
Truck
3925521
68-85
366
Truck Tall deck
3935439
68-69
427
2 & 4-Bolt
3935440
68-69
396
2 & 4-Bolt
3937724
68-85
366
Truck Tall deck
3937726
68-84
427
Truck Tall deck
3946052
69
427
ZL-I Aluminum 4-Bolt
3946053
97
427
ZL-I Aluminum 4-Bolt 2nd design
3955270
69
427
2 & 4-Bolt
3955272
69
396/402
2 & 4-Bolt
3955274
68-85
366
Truck Tall deck
3955276
68-84
427
Truck Tall deck
3963512
69-71
427/454
2 & 4-Bolt COPO
3963513
73-76
454
3965440
68-69
396
3965449
68-72
396
3969852
68-84
366
Truck
3969854
69-72
396/402/454
2 & 4-Bolt
3969858
68-84
427
Truck Tall deck
3995623
61
409
3999289
72-78
454
Car & Truck 2-Bolt
3999290
72
402
2-bolt
3999293
68-85
366
Truck Tall deck
3999294
68-84
427
Truck Tall deck
6272176
68-76
366
Truck
6272177
72
402
2-bolt
6272181
73-76
427
Truck
10051107
454
4-Bolt Bowtie IV Short deck
10068286
90-91
454
4-Bolt IV Short deck
10069284
427
Truck
10114182
91-95
454
4-Bolt Gen-5
10114183
91-95
366
Truck Gen-5
10114184
91-95
427
Truck Gen-5
10134366
454
4-Bolt Gen-5 Bowtie Tall deck
10185050
454
4-Bolt Gen-5 Bowtie Short deck
10237297
96-up
454
4-Bolt Vortec 7400 Gen-6
10237300
96-up
502
4-Bolt 4.466 bore Gen-6
12550313
91-95
454
4-Bolt Gen-5
12556110
01-up
496
4-Bolt Vortec 8100 Gen-7
14015445
75-90
454
Car & Truck
14015543
87-90
454
4-Bolt Gen-5
14044807
454
4-Bolt IV Bowtie Tall deck
14096859
502
4-Bolt Gen-5
24502504
454
4-Bolt Gen-5 Bowtie Short deck
24502572
4-Bolt DRCE-2 Olds "9.5"" deck"


Crankshaft Identification
Use these casting numbers to identify the crankshaft you have.
Small Block Casting numbers
Casting Number
CID
Years
Journals
Stroke
Comments
1130
307/327
68-73
2.45/2.10
3.25
Nodular Iron
1178
302
2.45/2.10
3
Forged
1181
305/350
68-76
2.45/2.10
3.48
Nodular Iron
1182
350
2.45/2.10
3.48
Forged
2680
327
2.30/2.00
3.25
Forged
2690
350
2.45/2.10
3.48
Forged
3279
302
68-69
2.45/2.10
3
Forged
4577
327
62-67
2.3/2.0
3.25
Nodular Iron
4672
307/327
68-73
2.45/2.10
3.25
Nodular Iron
310514
350
77-85
2.45/2.10
3.48
Nodular Iron
330550
350
73-75
2.45/2.10
3.48
Forged
354431
262
75-76
2.45/2.10
3.1
Nodular Iron
3727449
283
57-67
2.3/2.0
3
Forged
3729449
265
55-57
2.3/2.0
3
Forged
3734627
327
62-67
2.3/2.0
3
Forged
3735236
265/283
55-67
2.3/2.0
3
Forged
3735263
283
57-63
2.3/2.0
3
Forged
3782680
327
62-67
2.3/2.0
3.25
Forged
3814671
327
2.30/2.00
3.25
Forged
3815822
265/283
55-67
2.3/2.0
3
Forged
3835236
283
57-65
2.3/2.0
3
Forged
3836266
265/283
56-63
2.3/2.0
3
Forged
3849847
283
57-67
2.3/2.0
3
Forged
3876764
283
64-67
2.3/2.0
3
Nodular Iron
3876768
283
64-67
2.3/2.0
3
Nodular Iron
3884577
327
2.30/2.00
3.25
Forged
3892690
350
68-85
2.45/2.10
3.48
Forged
3911001
307/327
68-73
2.45/2.10
3.25
Nodular Iron
3911011
307/327
68-73
2.45/2.10
3.25
Nodular Iron
3914672
327
2.45/2.10
3.25
Forged
3923279
302
2.45/2.10
3
Forged
3932442
305/350
69-85
2.45/2.10
3.48
Nodular Iron
3941174
307/327
68-73
2.45/2.10
3.25
Nodular Iron
3941178
302
68-69
2.45/2.10
3
Forged
3941182
350
68-76
2.45/2.10
3.48
Forged
3941188
350
2.45/2.10
3.48
Forged
3949847
283
64-67
2.3/2.0
3
Nodular Iron
3951130
327
2.45/2.10
3.25
Forged
3951529
400
70-80
2.65/2.10
3.75
Nodular Iron
10106122
350
90-95
2.76/2.10
3.66
Forged LT-5 ZR-1
10168568
265
2.45/2.10
3
Cast One Piece Seal
12552216
346
2.558/2.10
3.62
Cast LS-1 One Piece Seal
14088526
305
1986
2.45/2.10
3.48
Nodular Iron One piece seal
14088532
350
86-88
2.45/2.10
3.48
Forged One piece seal
14088535
305/350
86 & UP
2.45/2.10
3.48
Nodular Iron One piece seal
14088552
350
86 & UP
2.45/2.10
3.48
Forged One piece seal

Big Block Crankshaft
Casting Number
CID
Years
Journals
Stroke
Comments
3520
454
2.75/2.20
4
Forged
3521
454
70-88
2.75/2.20
4
Forged LS-6
3524
454
2.75/2.20
4
Forged
6223
366/396/402/427
68-76
2.75/2.20
3.76
Forged
7115
366/396/402/427
65-76
2.75/2.20
3.76
Forged
7416
454
70-88
2.75/2.20
4
Forged
7463
454
2.75/2.20
4
Forged
336782
454
2.75/2.20
4
Cast
353039
454
70-88
2.75/2.20
4
Nodular Iron
353638
454
2.75/2.20
4
359730
454
2.75/2.20
4
3732692
348
2.75/2.20
4
3732692
348
1958
2.50/2.20
3.25
Forged
3733223
409
62-65
2.50/2.20
3.5
Forged
3733223
348
2.50/2.20
3.25
Forged
3733226
348
2.50/2.20
3.25
Forged
3733226
348
1958
2.50/2.20
3.25
Forged
3741640
348
2.50/2.20
3.25
Forged
3741640
348
59-61
2.50/2.20
3.25
Forged
3741642
348
2.50/2.20
3.25
Forged
3741642
348
59-61
2.50/2.20
3.25
Forged
3788072
409
1961
2.50/2.20
3.5
Forged
3788072
409
2.50/2.20
3.5
Forged
3795589
409
61-62
2.50/2.20
3.5
Forged
3795589
409
2.50/2.20
3.5
Forged
3804816
366/396/402/427
61-76
2.75/2.20
3.76
Nodular Iron
3815822
348
58-61
2.50/2.20
3.25
Forged
3815822
348
2.50/2.20
3.25
Forged
3824553
348
58-61
2.50/2.20
3.25
Forged
3824553
348
2.50/2.20
3.25
Forged
3829027
409
2.50/2.20
3.5
Forged
3829027
409
1963
2.50/2.20
3.5
Forged
3837466
409/427
2.50/2.20
3.65
Forged Z-11Special performance
3837466
409
1963
2.50/2.20
3.5
Forged Z-11
3838416
409
64-65
2.50/2.20
3.5
Forged
3838416
409
2.50/2.20
3.5
Forged
3856223
396/402
65-71
2.75/2.20
3.76
Nodular Iron
3863114
402
2.75/2.20
3.76
3863144
366/396/402
68-85
2.75/2.20
3.76
Forged
3874874
366/396/402/427
66-85
2.75/2.20
3.76
Forged
3879621
427
2.75/2.20
3.76
Forged
3882841
396
2.75/2.20
3.76
Forged
3882842
366/396/427
2.75/2.20
3.76
Forged
3882849
366/396/427
2.75/2.20
3.76
Forged
3887114
396
2.75/2.20
3.76
Forged Special performance
3904815
366/396/402/427
65-76
2.75/2.20
3.76
Nodular Iron
3962523
454
2.75/2.20
4
Forged
3963521
454
2.75/2.20
4
Forged Special performance
3963524
454
70-72
2.75/2.20
4
Forged
3965746
NA
NA
NA
Semi finished Forged crank
3965753
NA
NA
NA
Semi finished Forged
3967416
454
70-71
2.75/2.20
4
Forged
3967463
454
70-88
2.75/2.20
4
Forged
3975495
454
2.75/2.20
4
3975945
454
2.75/2.20
4
3993804
NA
NA
NA
Raw Forged crank
3993878
454
2.75/2.20
4
Forged
10051169
NA
NA
NA
Raw Forged
10114186
427
2.75/2.20
3.76
Forged
10114187
396
2.75/2.20
3.76
Cast
10114188
454
2.75/2.20
4
Cast One Piece Seal
14097044
454/502
2.75/2.20
4
Forged One Piece Seal


Cylinder Head ID
Use these casting numbers to identify the heads you have.
Small Block Casting numbers
Casting Number
CID
Years
Valves
Comments
10065202
350
82-86
1.94/1.50
76cc
10065203
350
82-86
1.94/1.50
76cc
10065204
350
82-86
1.94/1.50
76cc
10065205
305
82-86
1.84/1.50
58cc
10065206
350
82-86
1.94/1.50
76cc
10065207
305
82-86
1.84/1.50
58cc
10088113
350
86-92
1.94/1.50
58cc Corvette Aluminum
10120928
350
87-94
1.94/1.50
76cc
10125320
350
94-96
2.00/1.55
Gen II LT1 cast iron version,
10128374
350
92-97
2.00/1.55
Gen II LT1 53 CC angle plug aluminum
10134363
Bowtie High Port 60 CC 210 ~ 258 CC
10159550
350
87-94
1.94/1.50
76cc
10159551
305
87-94
1.84/1.50
58cc
10159552
350
87-94
1.94/1.50
76cc
10159553
305
87-94
1.84/1.50
58cc
10185040
Splayed vavle head 45 CC angle plug
10205245
350
93
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10207643
350
94-97
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10208890
265
94-96
2.00/1.55
Gen II L99 4.3 Liter V-8, cast iron, reverse flow
10215339
346
97
2.00/1.55
Gen III LS1 aluminum 68cc
10239906
305/350
96-up
1.94/1.50
68cc Vortec
12367713
2.00/1.55
GM Fast burn 62 CC 210 CC intake runner angle plug Vortec
12480005
346
0
2.125/1.625
Gen III LS1 "GTZ" aluminum 38cc angle plug
12480011
SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads.
12480034
2.02/1.60
Bowtie Phase III 64cc Angle plug 184 cc intake runner
12506450
350
87-94
1.94/1.50
76cc
12509859
305
87-94
1.84/1.50
58cc
12516852
350
87-94
1.94/1.50
76cc
12551561
350
96
2.00/1.55
Gen II LT1 angle plug aluminum reverse flow cooling
12552520
305
97-99
1.84/1.5
Vortec Truck L-35
12554290
350
94-96
2.00/1.55
Gen II LT1 cast iron version
12555690
350
96
2.00/1.55
Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12555690
350
96
2.00/1.55
Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12556743
325
99 & UP
2.00/1.55
Gen III 5.3L aluminum truck and van
12558059
305
97
1.84/1.5
L-35 Vortec truck
12558062
350
98
1.94/1.5
L-31 Vortec truck 64cc chambers 170cc intake port
12558062
305/350
96-up
1.94/1.50
68cc Vortec
12558806
346
97-98
2.00/1.55
Gen III LS1 aluminum 68cc
12559853
346
99 & UP
2.00/1.55
Gen III LS1 aluminum 68cc
12559895
325
00 & UP
2.00/1.55
Gen III 5.3L aluminum
12564241
346
00 & UP
2.00/1.55
Gen III LS1 aluminum 68cc
12564243
346
2
2.00/1.55
Gen III LS6 aluminum 68cc
12564243
346
2.00/1.55
Gen III LS-6 vette head 65 CC
14008856
267
79-81
1.71/1.50
14010201
305
82-85
1.84/1.50
58cc
14011034
350
80-up
2.02/1.60
64cc Bowtie
14011049
350
82-up
2.02/1.60
64cc Bowtie Aluminum
14014415
267/305
80-85
1.71/1.50
64cc Crack prone
14014416
267/305/350
80-86
1.84/1.50
64cc Crack prone
14019821
350
80-86
1.84/1.50
76cc
14019924
267
79-81
1.71/1.50
14019926
305
80-86
1.84/1.50
14020516
305/350
80-86
1.84/1.50
14020517
350
80-86
1.84/1.50
76cc
14020555
305
81
14020556
350
81
14022206
350
80
1.94/1.50
76cc
14022301
305
80-86
1.84/1.50
58cc
14022601
267/305
79-86
1.72/1.50 1.84/1.50
58cc
14022801
305
80-86
1.72/1.50
58cc
14034806
267
78-82
1.72/1.50
14034807
305
78-82
1.72/1.50
14034808
350
80-86
1.84/1.50
76cc
14034810
350
80-86
14034811
350
80-86
14039121
305
81-86
14039122
305
81-86
14071114
350
80-86
14075381
350
80-86
14079261
350
82-85
14085844
350
80-86
14089119
350
80-86
14096217
350
90-up
1.94/1.50
64cc Crate heads
14101081
305
87-94
1.84/1.50
58cc
14101083
350
88-94
1.94/1.50
64 cc
14102187
305
87-95
1.84/1.50
58cc
14102191
305/350
87-95
1.84/1.50
14102193
305/350
87-95
1.84/1.50
24502559
96-97
Bowtie SB2 1st design"mirror ports" aluminum
25534351C
2.00/1.55
Vortec Bowtie 65 CC 175 cc intake runner
25534371C
2.00/1.55
Vortec Bowtie 65 CC 206 cc intake runner
3238882
350
68-69
1.94/1.50
76cc
3297185
307/327/350
57-67
1.72/1.50
330545
350/400
71-75
2.02/1.60
76cc
330862
400
71-73
1.94/1.50
333881
350
71-76
2.02/1.60
76cc
333882
350/400
70-80
1.94/1.50
76cc
340292
350
73-80
2.02/1.60
64cc Angle plugs turbo' head No heat riser
354434
262/305
75-80
1.72/1.50
60cc
358741
262/305
71--79
1.72/1.50
359944
350
71-79
1.94/1.50
76cc
3636839
265
55
1.72/1.50
3703523
265
55
1.72/1.50
195HP
3713358
265
55-56
1.72/1.50
3713569
265
55-56
1.72/1.50
3725306
265
56
1.72/1.50
210HP Corvette
3731262
265
56
1.72/1.50
Dual Quad Corvette
3731539
283
57-66
1.72/1.50
283HP Corvette
3731544
265/283
55-61
1.72/1.50
Dual Quad Corvette
3731554
265/283
55-63
1.72/1.50
3731556
283
57
1.72/1.50
3731762
265
56
1.72/1.50
Dual Quad Corvette
3737775
283/327
62-67
1.72/1.50
3740997
283
57
1.72/1.50
Dual Quad FI & 4-brl 220-270HP
3743056
283
58
1.72/1.50
3743096
327
62-67
1.72/1.50
3747363
265
57-62
1.72/1.50
3748056
327
62-67
1.72/1.50
3748720
283
57-58
1.72/1.50
Dual Quad FI & 4-brl Corvette
3748770
283
55-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3748772
283
57-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3755537
283
57-62
1.72/1.50
3755538
283
59
1.72/1.50
250-290HP FI Corvette
3755539
283
58-62
1.72/1.50
3755549
283
57-62
1.72/1.50
3755550
283
57-62
1.72/1.50
Dual Quad FI & 4-brl Corvette
3755585
327
62-67
1.72/1.50
3755896
283
62-64
1.72/1.50
3760116
283
59
1.72/1.50
Dual Quad FI & 4-brl Corvette
376445
350
80-84
1.72/1.50
376450
262/305
75-76
1.72/1.50
376495
350
Jun-79
1.94/1.50
76cc
3767460
265/283/327
55-67
1.72/1.50
Car & Truck Corvette
3767462
327
62-67
1.72/1.50
3767465
283
60-61
1.72/1.50
Dual Quad FI & 4-brl Corvette
3767754
283
60-61
1.72/1.50
3767792
283
60-67
1.72/1.50
3770126
327/350
67-70
1.94/1.50
3773012
265
55
1.72/1.50
3774634
327
64-67
1.72/1.50
3774682
283/327
60-67
1.72/1.50
3774684
283/327
57-67
1.72/1.50
3774690
283
58
1.72/1.50
FI Corvette
3774692
283
58-64
1.72/1.50
Dual Quad FI & 4-brl Corvette
3782461
302/327/350
61-70
1.94/1.50
Dual Quad FI & 4-brl Corvette 2.02/1.60 Doubble humps 64cc
3782462
327
67
1.94/1.50
Corvette 2.02/1.60
3792563
327
65-67
3795896
283/307/327
58-72
1.72/1.50
60cc
3796896
283
64-67
1.72/1.50
60cc Chevy II
3798996
327
63-67
3814462
350
67
1.94/1.50
3814480
283/327
60-67
1.72/1.50
3814482
327
62-67
1.72/1.50
3817680
283
59
1.72/1.50
FI 4-brl
3817681
327
62-67
1.72/1.50
3817682
283
61-62
1.72/1.50
3836839
265
55
1.72/1.50
3836842
283/327
57-67
1.72/1.50
3836924
283
63-64
1.72/1.50
3836942
283
58-62
1.72/1.50
3837063
283
58-62
1.72/1.50
3837064
265/283
56-62
1.72/1.50
3837065
265
55-56
1.72/1.50
3837775
283/327
62-67
1.72/1.50
383882
400
71-73
3848720
283
57-58
1.72/1.50
3849820
327
65
1.72/1.50
3854520
283/327
62-67
1.72/1.50
3867802
283
57-60
1.72/1.50
FI Corvette
3873064
265
56-57
1.72/1.50
3876487
350
71-73
1.94/1.50
76cc
3876775
283/327
57-67
1.72/1.50
76cc
3878775
327
64-67
1.72/1.50
3884520
283/327
60-67
1.72/1.50
60cc
3890462
302/327/350
62-68
1.94/1.50 2.02/1.60
64cc Doubble humps
3891462
302/327/350
62-67
1.94/1.50 2.02/1.60
64cc
3891492
327
64-67
1.94/1.50
3911011
327
68
3911032
307/327
68-70
1.72/1.50
70cc
3912264
283
58-62
1.72/1.50
3912265
283
63-64
1.72/1.50
3912291
302/327/350
68-70
1.94/1.50 2.02/1.60
64ccDoubble humps
3912311
350
67
1.94/1.50
3912313
327
65-73
1.72/1.50
3917264
302
67
2.02/1.60
64cc Z-28
3917290
327
68-70
1.72/1.50
3917291
302/327/350
62-69
1.94/1.50 2.02/1.60
64cc Doubble humps
3917292
327
67-68
1.94/1.50
3917293
307/327
68-69
1.72/1.50
76cc
3921175
327
66
1.94/1.50
3923441
350
67-76
1.94/1.50
76cc
3927185
307/327/350
68-79
1.72/1.50
70cc
3927186
302/327/350
68-72
1.94/1.50 2.02/1.60
64cc Doubble humps Bolt holes
3927187
302/350
69-70
2.02/1.60
64cc Corvette
3927188
307/327/350
69
1.72/1.50
76cc
3928454
307
68
1.72/1.50
3928455
302/327
68
2.02/1.60
64cc 325 & 350HP
3928494
327
68
2.02/1.60
64cc 350HP 4-brl
3928495
327
68
1.72/1.50
3931633
307
68-73
1.72/1.50
3931635
350
68-76
1.94/1.50
76cc
3931637
327
68-69
3931638
327
68
1.72/1.50
3931639
302
68
2.02/1.60
64cc
3932441
327/350
67-79
1.94/1.50
76cc
3932454
307/350
68-799
1.72/1.50
76cc
3933148
350
68-73
76cc
3941174
327
68
1.72/1.50
3946812
350
69
1.72/1.50
3946813
350
69-79
76cc
3947014
350
68-70
3947040
302/327/350
68-70
1.94/1.50 2.02/1.60
64cc
3947041
302/327/350
68-79
1.94/1.50 2.02/1.60
64cc
3951598
400
70-71
1.94/1.50
76cc
3961598
400
70-76
1.94/1.50
76cc
3964286
350
68-77
1.94/1.50
76cc
3970126
327/350
67-79
1.72/1.50
3973195
400
71-73
1.94/1.50
76cc
3973414
327/350
64-70
2.02/1.60
64cc Z-28 LT-1 corvette
3973487
350
68-79
1.94/1.50 2.02/1.60
76cc
3973487X
350
68-73
1.94/1.50 2.02/1.60
76cc X cast 10cc's
3973493
400
70-76
1.94/1.50
76cc
3986316
350
71-72
2.02/1.60
76cc
3986330
350
69-79
1.94/1.50
76cc
3986339
307/350
68-79
1.72/1.50
76cc
3986388
350
68-79
1.72/1.50
76cc
3990941
307/350
68-82
3991492
327/350
68-73
1.94/1.50 2.02/1.60
64cc Angle plug
399380
400
70-73
76cc
3997417
307
71
1.72/1.50
3998916
350/400
72-75
2.02/1.60
76cc
3998920
350
72-75
1.94/1.50
76cc
3998991
307/350
68-79
1.72/1.50
76cc
3998993
307/350
68-79
1.71/1.50 1.94/1.50
76cc
3998997
350/400
71-73
1.94/1.50
76cc
426424
305/350/400
72-82
1.72/1.50
458624
350
69-84
1.94/1.50
76cc
460703
350
78-80
1.94/1.50
76cc
462614
305/350
77-79
1.72/1.50
462624
350
76-87
1.94/1.50 2.02/1.60
76cc Crack prone
464033
350
76-86
1.94/1.50
76cc
464036
350
76-86
1.94/1.50
76cc
468642
350/400
75-84
1.72/1.50
471513
267
79-81
1.72/1.50
472424
305
76-79
1.72/1.50
474213
305
78-82
1.72/1.50
474214
350
78-82
1.94/1.50
76cc
475590
400
78-82
1.94/1.50
76cc
517513
267
79-81
1.72/1.50
6259515
350
73
6260855
350
73-75
1.94/1.50
76cc
6260856
350
73-76
1.94/1.50
76cc
6272070
350
73
10045427
Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port
10049875
Pontiac/Chevy Aluminum Small Rectangle port
10051128
454
90-94
2.19/1.88
72cc Bowtie Aluminum Rectangular port 400cc intake
10052902
427
Oval Port Open chamber
10101136
454
91-94
2.06/1.77
Open chamber Oval port
10101140
366/427
91-01
Oval Port Closed chamber
10114156
454
91-01
Oval Port Open chamber
10121033
454
78-88
2.06/1.77
Open chamber Oval port
10141279
454
96-01
Vortec 7400 100cc chambers Oval Port
10487052
366
77-90
Oval Port Open chamber
12352783
454
79-93
2.06/1.77
Open chamber Oval port
12363391
Oval Port Bowtie Aluminum Signature Series
12363401
Rectangle Port Bowtie Aluminum Signature Series
12558162
496
01 & UP
Gen.VII Vortec 8100 8.1L truck
12560241
454
98-01
Vortec 7400 100cc chambers Oval Port
12562932
454/502
91-95
Oval Port truck crate motor 118cc chambers
12562934
502
00 & UP
GenVI Marine
14011077
454
89-94
2.19/1.88
118cc Replacement Aluminum Rectangular port 295cc intake
14025175
454
83-93
2.06/1.77
Open chamber Oval port
14044861
454
89-94
2.19/1.88
106cc Bowtie Aluminum Rectangular port 380cc intake
14081044
454
86-90
2.06/1.77
Open chamber Oval port
14081045
454
78-87
Oval Port Open chamber
14081052
366/427/454
85-87
Oval Port Open chamber
14092359
427
86-89
2.06/1.77
Open chamber Oval port
14092360
454
85-89
2.06/1.77
Open chamber Oval port
14096188
454
87-94
2.19/1.88
118cc Replacement Rectangular port 325cc intake
14097088
502
89-date
2.19/1.88
118cc Replacement Rectangular port 325cc intake GEN V
14101398
454
86-90
2.06/1.77
Open chamber Oval port
24502585
Olds/Chevy DRCE 2 Pro Stock aluminum
330864
366/427/454
70-81
2.06/1.77
Open chamber Oval port
330865
366/427/454
70-84
2.06/1.77
Open chamber Oval port
330866
366/427
68-78
Oval Port Open chamber
330867
427
68-73
Oval Port Open chamber
336768
427
73-76
Oval Port Open chamber
336781
454
73-85
2.06/1.77
113cc Oval port
343771
366/427/454
68-85
2.06/1.77
Open chamber Oval port
343772
366/427/454
76-84
2.06/1.77
Open chamber Oval port
343783
454
75-78
2.06/1.77
Open chamber Oval port
346236
454
75-87
2.06/1.77
113cc Oval port
346238
454
75-87
2.06/1.77
113cc Oval port
352625
454
70-76
Oval Port Open chamber
353049
454
70-73
2.06/1.77
113cc Oval port
366765
427/454
73-84
2.06/1.77
Open chamber Oval port
3732791
348
58
3758379
348
59-61
3759256
348
58
3767738
348
59-61
3781147
348
60-61
High Perf
3795586
409
61
360HP
3814690
409
62-64
High Perf
3819333
348/409
62-65
3830817
409
63-65
340HP
3837731
409
63
High Perf Z-11
3852583
409
65
400HP
3856206
396
65-66
2.06/1.77
98cc Oval port
3856208
396
65
2.06/1.77
109cc Z-16/L-37 Rectangular port
3856213
366
66-70
2.06/1.77
Closed chamber Oval port
3856260
396
68
Oval Port Closed chamber
3872702
396/427
66
2.06/1.77
98cc Oval port L-34/L-35/L-36
3873858
396/427
66-67
2.06/1.77
109cc L-78/L-72 Rectangular port
3876875
427
66-70
2.06/1.77
Closed chamber Oval port
3904390
396/427
66-67
2.06/1.77
98cc Oval port L-34/L-35/L-36
3904391
396/427
65-67
2.06/1.77
107cc L-78/L-71/L-72 Rectangular port
3904392
427
67
2.19/1.88
106cc L-88/L-89 Aluminum Rectangular port
3904393
366
66-68
2.06/1.77
Closed chamber Oval port
3908952
427
67
Oval Port Open chamber
3909802
396/427
66-67
2.06/1.77
100cc Oval port L-34/L-35/L-36/L-68
3917215
396/427
67-69
2.06/1.77
100cc Oval port L-34/L-35
3917219
366/427
66-70
2.06/1.77
Closed chamber Oval port
3919840
396/427
67-69
2.06/1.77
107cc L-78/L-71/L-72 Rectangular port
3919842
396/427
68-69
2.19/1.88
106cc L-88/L-89 Aluminum Rectangular port
3931063
396/427
69-70
2.06/1.77
100cc Oval port L-34/L-35
3933148
366/396/427
69
2.06/1.77
122cc Oval port
3933149
427
69-70
2.06/1.77
122cc Oval port
3935401
427
68-76
Oval Port Open chamber
3946074
396/454
69-71
2.19/1.88
118cc L-88/ZL-1 Aluminum Rectangular port
3964280
427/454
66-70
2.06/1.77
Closed chamber Oval port
3964290
396/402/427/454
69-70
2.06/1.77
100cc Oval port
3964291
396/402/427/454
69-70
2.19/1.88
108cc L-78/L-71/L-72/LS-6 Rectangular port 325cc intake
3964292
454
70
2.19/1.88
109cc LS-6 Rectangular port
3965198
396
69
2.06/1.77
Open chamber Oval port
3975950
366/427
68-70
2.06/1.77
Closed chamber Oval port
3986133
366/427
70-85
2.06/1.77
Closed chamber Oval port
3986136
366/427
70-84
2.06/1.77
Closed chamber Oval port
3993820
402/454
71
2.06/1.77
113cc Oval port
3994025
454
71
2.19/1.88
118cc LS-6 Rectangular port
3994026
454
71
2.19/1.88
118cc LS-6 Rectangular port
3999241
402/454
72
2.06/1.77
113cc Oval port
473328
366
68-85
2.06/1.77
Open chamber Oval port
6258723
454
71
2.19/1.88
118cc LS-6 Rectangular port
6272292
402/454
71
2.06/1.77
Open chamber Oval port
6272990
454
71-94
2.19/1.88
118cc Replacement Rectangular port 325cc intake

Use these casting numbers to identify the exhaust manifolds you have.
Casting Number
Years
Engine
Side
Comments
336706
74-78
350
RH
336707
74-78
350
LH
336708
74-78
350
RH
336709
74-78
350
RH
Camaro & Z-28 with A.I.R.
336710
74-78
307, 350 & 400
LH
Chevelle, Camaro, Z-28, Nova and P***enger with A.I.R.
346222
74-80
307, 350 & 400
RH
Chevelle, Camaro, Nova and P***enger with A.I.R.
346247
75-77
262, 350 & 400
LH
Chevelle, Camaro, Monte Carlo and P***enger 110, 145, 155 & 175 HP
346248
75-77
262, 350 & 400
RH
Chevelle, Camaro, Monte Carlo and P***enger 110, 145, 155 & 175 HP
354432
75-76
262
RH
110 HP
354433
75-76
262
LH
110 HP
364753
76-80
307, 350 & 400
LH
Camaro, Monte Carlo, Malibu and P***enger
372243
74-83
307, 350 & 400
RH
Corvette and Replacement manifold
462697
77-79
267 & 305
LH
Monte Carlo and Malibu
462698
77-83
267 & 305
RH
Monte Carlo and Malibu
474008
78-82
267, 305 & 350
RH
745994
80-86
267 & 305
LH
3704791
55-56
265
LH
Corvette and P***enger 195 HP
3704792
55-56
265
RH
Corvette and P***enger 195 HP
3725563
56
265
LH & RH
Corvette and P***enger 210 HP 2-Bolt Flange
3731557
56
265
LH
Corvette and P***enger 225 HP
3731558
56
265
RH
Corvette and P***enger 225 HP
3732498
58
283
RH
Corvette FI
3733975
57
283
LH
Corvette and P***enger 220, 245, 250, 270 & 283 HP
3733976
57
283
RH
Corvette and P***enger 220, 245, 250, 270 & 283 HP
3737902
62-65
327
RH
300, 340, 360, 365 & 375 HP 2.5" Outlet
3746563
65
327
LH
300 HP
3747038
58-65
283 & 327
RH
Corvette and P***enger 220, 250 & 300 HP 1.9" Outlet
3747042
58-68
283, 307 & 327
RH
Corvette and P***enger 195, 200, 220, 250, 270, 275, 290, 300 & 350 HP 1.9" Outlet
3747938
64
327
LH & RH
250 & 300 HP
3747942
65
327
LH & RH
250, 350 & 365 HP
3749965
58-63
283 & 327
LH
Corvette and P***enger 230, 245, 250, 270, 275, 290, 300 & 315 HP
3750556
58-65
283 & 327
RH
Corvette and P***enger 230, 245, 250, 270, 275, 290, 300 & 315 HP
3780728
64-67
327
LH
Chevy II
3790729
64-67
283 & 327
LH
195, 220, 250, 270, 275, 300 & 350 HP 2.0" Outlet Chevy II
3790730
64-65
283 & 327
RH
220, 250 & 300 HP 1.9" Outlet Chevy II
3791162
65-66
283 & 327
RH
Chevy II with AC
3791182
66-67
283 & 327
RH
P***enger with AC
3797901
62-63
327
LH
Corvette 300, 340 & 360 HP
3797902
62-65
327
RH
Corvette 300, 340, 360, 365 & 375 HP 2.5" Outlet
3797942
63-65
327
LH & RH
Corvette 300, 360, 365 & 375 HP 2.5" Outlet
3834947
64-68
283, 307 & 327
LH
Chevelle 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 2.0" Outlet
3836968
55-56
265
RH
Corvette and P***enger 195 HP
3837069
55
265
LH
Corvette and P***enger 195 HP
3840715
64
283 & 327
LH
Chevelle
3840912
64-68
283, 307, 327 & 350
RH
Chevelle, Camaro and Nova 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 1.9" Outlet
3846559
64-71
327 & 350
LH
Corvette 250, 270, 300 & 350 HP 2.0" Outlet
3846563
64-65
327
LH
Corvette 300, 350 & 365 HP 2.5" Outlet
3846659
66
327
LH
350 HP
3849288
64-67
283 & 327
RH
195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3849290
64-67
283 & 327
RH
195, 220, 275 & 350 HP 1.9" Outlet Chevy II with AC
3855163
65-68
283, 307 & 327
LH
P***enger and Truck 195, 200, 220, 250 & 275 HP 2.0" Outlet
3872723
66-67
283 & 327
LH
195, 220, 275 & 350 HP 2.0" Outlet Chevy II A.I.R.
3872729
66
283 & 327
LH
Chevelle 195,220, 275 & 350 HP 2.0" Outlet A.I.R.
3872730
66-68
283, 302, 307 & 327
RH
Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9" Outlet A.I.R.
3872738
66-67
283 & 327
RH
195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3872741
66-68
283, 307 & 327
LH
P***enger 195, 200, 220, 250 & 275 HP 2.0" Outlet A.I.R.
3872765
67-71
327 & 350
LH
Corvette 300, 330, 350 & 370 HP 2.0" Outlet A.I.R.
3872778
66-68
283, 307 & 327
RH
Corvette, P***enger and Truck 195, 200, 250, 275, 300 & 350 HP 1.9" Outlet A.I.R.
3887186
66
283
RH
220 HP 1.9" Outlet
3890424
64-67
283 & 327
RH
Chevy II
3892679
66-68
283, 302, 307, 327 & 350
LH
Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3892683
66-68
283, 302, 307, 327 & 350
LH
Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3893604
66-68
283 & 327
RH
P***enger A.I.R.
3893608
67-68
283, 302, 307, 327 & 350
RH
Chevelle, Camaro and Z-28 195, 200, 210, 250, 275, 290, 295 & 325 HP 1.9" Outlet
3896956
67-68
283 & 327
RH
Truck
3905364
69-72
307, 350 & 400
RH
Truck
3932376
69-70
307, 327, 350 & 400
RH
Chevelle and Camaro 200, 210, 250, 255, 265 & 300 HP 1.9" Outlet
3932461
69-74
327 & 350
LH & RH
Corvette 190, 195, 200, 235, 255, 300, 330 & 350 HP 1.9" Outlet A.I.R.
3932465
69-70
327, 350 & 400
RH
P***enger 235, 250, 255, 265, 300 & 350 HP 1.9" Outlet
3932469
69-70
327 & 350
LH
P***enger 235, 250, 255 & 300 HP 2.0" Outlet
3932473
69-70
327, 350 & 400
LH
P***enger 235, 250, 255, 265 & 300 HP 2.0" Outlet
3932481
69
350
RH
Corvette
3940972
67
350
RH
Camaro 295 HP
3942527
69-70
302, 307, 327 & 350
LH
Chevelle, Camaro, Z-28 and Nova 200, 210, 250, 255, 290, 300 & 360 HP 2.0" Outlet A.I.R.
3942529
69-70
302, 307, 327, 350 & 400
LH
Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet
3946826
69-70
302, 307, 327 & 350
RH
Chevelle, Camaro, Z-28 and Nova200, 210, 250, 255, 290, 300 & 360 HP 1.9" Outlet A.I.R.
3959562
72-74
307, 350 & 400
RH
Chevelle, Camaro and Z-28 115, 130, 145, 150, 160, 165, 170, 175, 180, 185 & 245 HP 2.0" Outlet A.I.R.
3973432
70-74
307, 350 & 400
RH
Chevelle, Camaro, Nova and P***enger 115, 130, 150, 165, 170, 175, 180, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet
3986330
69-73
302, 307, 327 & 350
RH
Camaro and Z-28 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 1.9" Outlet A.I.R.
3989036
71-75
350
LH & RH
Corvette and P***enger 165, 195, 200, 205 & 270 HP 2.0" Outlet with and without A.I.R.
3989041
69-74
302, 307, 327, 350 & 400
LH
Camaro, Z-28 and Nova 115, 130, 145, 150, 160, 165, 170, 180, 185, 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 2.0" Outlet with and without A.I.R.
3989043
70-73
307, 350 & 400
LH
Chevelle, Camaro, Nova and P***enger 105, 115, 130, 145, 150, 165, 175, 185, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet with and without A.I.R.
3989055
69-72
307, 350 & 400
LH
3997742
71-78
307 & 350
RH
2.0" Outlet
3998902
72-78
307 & 350
RH
10045315
88-94
305 & 350
LH
10045317
88-94
305 & 350
LH
10045317
88-94
305 & 350
LH
10046123
87-92
305 & 350
LH
10046139
84-85
350
LH
10046140
84-85
350
RH
10055734
87-91
350
RH
10092901
89-91
350
LH
10092903
89-94
350
LH
10092905
89-94
350
LH
10108437
87-93
305 & 350
RH
10128448
91-93
305 & 350
LH
10128483
91-93
305 & 350
LH
10166144
91-94
350
RH
10166145
87-90
305 & 350
LH
10166147
89-94
305 & 350
LH
10166158
89-94
305 & 350
RH
10168494
94
265 & 350
LH
10207656
93-94
350
LH
10207657
93
350
RH
10433037
82-86
305
LH
12550621
94
265
RH
12550622
91
350
RH
14007400
80-86
267 & 305
LH
14014437
80-84
305
LH
14014438
80-84
305
RH
14014459
81-86
305 & 350
LH
14014500
79-86
267, 305 & 350
RH
14022625
80-81
305
LH
14031361
82-86
305
RH
14031376
81-86
350
RH
14034069
81-86
350
RH
14034075
81-86
305 & 350
LH
14043373
82-86
305
LH
14050233
83-86
305 & 350
LH
14050282
83-87
305 & 350
RH
14050287
82-86
305
LH
14057029
84-85
350
LH
14057030
84-85
350
RH
14060630
81-86
350
RH
14060633
81-86
305 & 350
LH
14067365
77-86
267, 305, 350 & 400
LH
14068667
85-88
350
LH
14068670
85-88
350
RH
14071200
83-86
305
RH
14075611
83-86
305
LH
14079295
85-86
305 & 350
LH
14079296
85-86
305 & 350
RH
14087511
86-91
350
LH
14087512
86-91
350
RH
14093653
87-90
305 & 350
LH
14093654
87-90
305 & 350
RH
14093655
87-90
305 & 350
LH
14093658
88-94
305 & 350
RH
14093660
87-90
305 & 350
RH
14093682
87-90
305 & 350
RH
14094045
87-90
305 & 350
LH
14094063
87-92
305 & 350
LH
14094064
87-92
305 & 350
RH
14094065
85-88
350
RH
14101054
87-88
305 & 350
RH
14102016
88-94
305 & 350
RH
14102018
89-94
305 & 350
RH
14103206
87-91
305 & 350
RH
14103207
87-91
305 & 350
LH
329225
73-76
454
LH
Chevelle and P***enger with and without A.I.R.
353028
73-76
454
LH
Chevelle and P***enger with and without A.I.R.
353030
73-76
454
LH
Police
3732793
58-61
348
LH
P***enger
3732794
58-61
348
RH
P***enger
3767583
59-61
348 & 409
LH
P***enger
3767584
59-61
348 & 409
RH
P***enger
3814682
62-64
409
RH
P***enger
3814683
62-64
409
LH
P***enger
3822925
62-64
409
LH
P***enger & Z-11
3822926
62-64
409
RH
P***enger & Z-11
3855161
65
409
LH
P***enger 340 & 400 HP
3855162
65
409
RH
P***enger 340 & 400 HP
3856297
65
396
LH
325 HP
3856301
65
396
LH
425 HP Corvette
3856302
65
396
RH
425 HP Corvette
3856306
65
396
RH
P***enger 325 HP
3857297
65
396
LH
P***enger 325 HP
3868874
65-66
396
RH
Chevelle 325, 360 & 375 HP Z-16
3869925
65
396
LH
Chevelle 375 HP Z-16
3872770
66
396
RH
3880827
66-69
427 & 454
LH
Corvette
3880828
66-72
427 & 454
RH
Corvette 270, 365, 390 & 425 HP with and without A.I.R. LS-5 & LS-6
3880869
70-72
454
LH
Corvette 365 & 425 HP with and without A.I.R. LS-5 & LS-6
3883827
66
427
LH
P***enger
3883828
66
427
RH
P***enger
3883999
66
396
LH
Chevelle 325, 360 & 375 HP
3884504
66-67
396 & 427
RH
P***enger 325, 385 & 390 HP
3892307
66-67
396 & 427
LH
P***enger 325 & 390 HP
3902401
67
396
LH
Chevelle
3904399
66
396
LH
3909879
67-70
396, 427 & 454
LH
Chevelle, Camaro and Nova 325, 350, 375, 425, 430 & 450 HP LS-6 COPO
3909880
67
396
RH
Chevelle and Camaro 325, 350 & 375 HP
3914613
68-70
396 & 427
LH
P***enger 265, 325, 335, 345, 390 & 425 HP
3916178
68-70
396, 427 & 454
RH
Chevelle, Camaro, Nova and P***enger 325, 350, 375, 425, 430 & 450 HP COPO LS-5 & LS-6
3969869
70-74
454
LH
Corvette 270, 365 & 390 HP with and without A.I.R. LS-5
3989310
71-72
402 & 454
RH
Chevelle, Camaro, Monte Carlo and P***enger
3989343
71-72
402 & 454
LH
Chevelle, Camaro, Monte Carlo and P***enger
3994045
73-75
454
LH
Police

Chevy Intake Manifolds
Use these numbers to identify your stock Chevy intake.
Casting Number
CID
Years
Type
Comments
10051103
350
1990
4-Brl
Aluminum Bowtie Single plane
10066013
350
87-89
TPI
Corvette Base M*** air 9th injector style Aluminum heads (86 and older)
10077151
305/350
90-92
TPI
Plenum Speed density type
10086016
305/350
90-92
TPI
Base Speed density type (87 & UP intake bolt pattern)
10108630
350
92-97
MFI
LT-1
12550631
350
96
MFI
LT-4 Power coated red
12552138
265
93-96
MFI
L-99 (lt-1 style 4.3L V-8)
14007374
305
79-82
2-Brl
Aluminum
14014432
350
1981
4-Brl
Aluminum Quadrajet Z-28
14057053
305/350
80-88
4-Brl
Aluminum Quadrajet
14081006
350
87-89
TPI
Corvette Plenum M*** air 9th injector style
14096242
350
1990
4-Brl
Holley High rise Bowtie
340261
350/400
74-76
4-Brl
Quadrajet
340266
305/350/400
73-82
2-Brl
340281
305/350
82-85
4-Brl
Quadrajet
346249
305/350/400
75-77
4-Brl
Quadrajet
346250
305/350
76-82
4-Brl
Quadrajet
346260
267/305/350
73-77
2-Brl
355943
262
1975
2-Brl
3704790
265
1955
2-Brl
3711348
265
1955
4-Brl
WCFB
3728725
265
1956
Dual Quad
Aluminum
3731394
283
56-57
Dual Quad
Aluminum
3731398
283
1957
4-Brl
WCFB
3732690
265/283
56-57
2-Brl
3732880
265/283
56-57
2-Brl
3735444
265
1956
2-Brl
3735448
265
1956
4-Brl
WCFB
373598
305
78-81
2-Brl
Aluminum
3737109
265
1956
4-Brl
WCFB
3739653
283
58-61
Dual Quad
Aluminum
3741193
283
1957
Fuel Injection
Aluminum
3746826
265/283
56-63
2-Brl
3746829
283/327
58-64
4-Brl
WCFB
3753809
283
59-62
2-Brl
3783244
327
62-63
4-Brl
WCFB
3794129
327
1963
4-Brl
Aluminum
3795397
327
1962
4-Brl
Aluminum
3799349
327
62-64
4-Brl
Carter AFB
3826810
327
63-65
Fuel Injection
Aluminum
3837109
265/283
56-57
4-Brl
WCFB
3840905
283
64-65
2-Brl
3844457
283/327
64-65
4-Brl
WCFB
3844459
327
63-65
4-Brl
Carter AFB
3844461
327
64-65
4-Brl
Aluminum
3866922
283/327
62-65
4-Brl
WCFB
3872783
283/327
66-67
4-Brl
Holley
3872788
238/327
66-67
4-Brl
Holley
3875954
327
1966
4-Brl
Carter AFB
3877652
283/327
65-67
2-Brl
3882858
283
1966
4-Brl
Carter AFB
3890490
327
66-67
4-Brl
Aluminum
3905393
327/350
1967
4-Brl
Quadrajet
3910601
327
67-68
2-Brl
3916313
307/327/350/400
69-70
2-Brl
3917610
302
67-68
4-Brl
Aluminum
3919801
307/327
1968
2-Brl
3919803
327/350
67-68
4-Brl
Quadrajet
3927183
307/327
69-70
2-Brl
3927184
350
1969
4-Brl
Quadrajet
3932472
302/350
69-70
4-Brl
Aluminum
3941126
302
68-69
Cross Ram
Aluminum base
3941130
302
68-69
Cross Ram
Aluminum top plate
3958622
307/327
69-70
2-Brl
3958626
350
69-70
2-Brl
3959594
350
71-72
4-Brl
Aluminum
3965577
350
1970
4-Brl
Quadrajet
3972110
350
1970
4-Brl
Aluminum
3972114
350
70-72
4-Brl
Aluminum
3972116
350
1970
4-Brl
Aluminum Service replacement part
3972361
350
1971
4-Brl
Aluminum
3973465
307
69-71
2-Brl
3973467
350/400
1971
2-Brl
3973469
350
1971
4-Brl
Quadrajet
3987361
350
69-70
4-Brl
Quadrajet
3990948
350
1971
2-Brl
3991004
350
1973
4-Brl
Quadrajet
3991005
307
1971
2-Brl
3997770
350
1973
4-Brl
Quadrajet
3997771
350
1973
4-Brl
Quadrajet
3997772
350
1973
2-Brl
3997773
350/400
1973
2-Brl
458520
305/350
77-82
4-Brl
Quadrajet
458520
305/350
82-87
4-Brl
Aluminum
6262928
307
1972
2-Brl
6262930
350
1972
4-Brl
Quadrajet
6262936
307
1972
2-Brl
6263751
350
1972
4-Brl
Quadrajet
6263752
350/400
1972
2-Brl
626932
350
71-72
4-Brl
Quadrajet
6271060
307
1973
2-Brl
6271061
307
1973
2-Brl
7014360
283
1957
Rochester FI
7014520
283
1957
Rochester FI
7014800
283
57-58
Rochester FI
7014800R
283
1985
Rochester FI
7014900
283
1958
Rochester FI
7014900R
283
1958-59
Rochester FI
7014960
283
1958
Rochester FI
7017200
283
59-61
Rochester FI
7017250
283
59-61
Rochester FI
7017300
283
59-60
Rochester FI
7017300R
283
1959
Rochester FI
7017310
283
60-61
Rochester FI
7017320
283
1960
Rochester FI
7017355
327
1962
Rochester FI
7017360
327
1962
Rochester FI
7017375
327
1963
Rochester FI
7017375R
327
1964
Rochester FI
7017380
327
64-65
Rochester FI
336789
454
74
Q-jet
Oval port
346242
454
75
Q-jet
Oval port
353015
454
73
Q-jet
Oval port
3732757
348
58-62
4-Brl
3749948
348
58-61
Three duce
3753748
348
60-61
Dual quad
Aluminum
3760436
348
58-59
4-Brl
3767579
348/409
61
4-Brl
3770084
348
58-59
4-Brl
3772265
348
60-61
4-Brl
3780540
348
58-59
4-Brl
Aluminum
3797775
348
59-60
4-Brl
3797776
409
61
4-Brl
3813678
409
62-63
4-Brl
3814881
409
62-64
Dual quad
Aluminum
3830623
409
63
Dual quad
Aluminum Z-11
3830831
409
63
4-Brl
340HP
3844463
409
64-65
4-Brl
400HP
3844464
409
64-65
4-Brl
340HP
3844472
348/409
62-65
4-Brl
3856289
396
65-66
Q-jet
Oval port L-35
3866948
396/427
66-67
Holley
Oval port L-34/L-35
3866963
396
65
Holley
Rectangular port Aluminum L-37
3883984
396/427
66-68
Q-jet
Oval port L-35/L-36
3885069
396/427
66-68
Holley
Rectangular port Aluminum L-78/L-72
3886093
427
67
Holley
Rectangular port Aluminum L-88
3894374
427
67
Three duce
Rectangular port Aluminum L-71
3894382
427
67
Three duce
Oval port Aluminum L-68
3919849
427
68
Q-jet
Oval port Aluminum L-36
3919850
427
68
Three duce
Oval port Aluminum L-68
3919852
427
68
Three duce
Rectangular port Aluminum L-71
3919878
396/427
68
Holley
Rectangular port Aluminum L-78/L-72
3931067
396/427
69
Q-jet
Oval port L-35/L-36
3933163
396/427
68-69
Holley
Rectangular port Aluminum L-78/L-89 COPO
3933198
427
68-69
Holley
Rectangular port Aluminum L-88/ZL-1
3937793
427
68
Q-jet
Oval port Aluminum L-36
3937795
427
69
Three duce
Oval port Aluminum L-68
3937797
427
69
Three duce
Rectangular port Aluminum L-71
393841
454
73-75
Q-jet
Oval port
3947801
427
69
Q-jet
Oval port Aluminum L-36
3952900
396
69
2-Brl
Oval port
3955287
402/454
70-71
Q-jet
Oval port LS-3/LS-5
3963569
396/402/454
70-71
Holley
Rectangular port Aluminum Low rise L-78/L-89/LS-6
3967474
454
71
Holley
Rectangular port Aluminum
6263753
402/454
72
Q-jet
Oval port LS-3/LS-5
6269318
454
72
Holley
Rectangular port Aluminum