Cylinder Head ID

Small block chevy head castings
Casting # Combustion Chamber size CCs Intake valve Exhaust valve Production Years Misc Engine
10033867 62cc 2.02 1.60
over the counter 23 degree, angle plug, 196 cc intake runner, Aluminum
10045434 55cc


Over the counter 15 degree, angle plug, raised runner, aluminum
10051101 55cc 2.02 1.60
Bowtie, Aluminum angle plug, raised runner, 196 intake ports
10065202 cc 1.94 1.50 1987-95
350
10065203 cc 1.94 1.50 1987-95
350
10065204 cc

1987-65
350
10065205 cc

1987-95
305
10065206 cc

1987-95
350
10065207 cc

1987-68
305
10088113 58cc 1.94 1.50 1988-up angle plug, "D" exhaust ports 350
10093328 61cc


Pontiac 15 degree heads, aluminum, 224 cc ports.
10106178 cc

1990 LT1, ZR1, DOHC 32-valve, aluminum. 350
10106179 cc

1990 LT5, ZR1, DOHC 32- valve 350
10110810 cc

1993-up Gen. 1 350
10120928 cc

1987-95
350
10125320 cc

1994-96 Gen.2 LT1, cast iron 350
10128374 68cc

1992-up Gen. 2 LT1, reverse flow, 175 intake ports, 68 cc exhaust ports 350
10129552 cc

1987-95
350
10134352 45cc


Bowtie Low port, angle plug, 18 degree, 223 intake port, race head
10147898 cc

1995-96 Gen. 1 crate motor 350
10159550 cc

1987-95
350
10159551 cc

1987-95
305
10159553 cc

1987-65
305
10174389 cc

1991-94 LT1, ZR1, DOHC-32 valve 350
10174390 cc

1991-95 LT1, ZR1, DOHC-32 valve 350
10185040 45cc


Bowtie, symmetrical ports,263 cc intake ports, splayed valves
10185040 45cc


Bowtie, 2nd version symmetrical ports, 240cc intake ports, splayed valves
10205245 cc

1993 Gen. 2 LT1, Reverse flow, 175 intake ports, 68 cc exhaust ports 350
10207643 cc

1994-96 Gen. 2 LT1, Reverse flow, 175 intake ports, 68 cc exhaust ports 350
10215339 cc

1997 Gen. 3 "LS1" 350
10225121 cc

1994-95 LT5, ZR1, DOHC 32-valve 350
10225122 cc

1995 LT5, ZR1, DOHC 32-valve 350
10239902 54.4cc

1996-up Gen. 2 LT4, Reverse flow, 195 cc intake, angle plug. 350
10239906 64cc 1.94 1.50 1996-up Vortec 5700, L31, 170 cc intake ports. 350
12367712 62cc 2.00 1.55 1999-up Fast burn, aluminum, 210 cc intake ports.
12367713 62cc 2.00 1.55 1999-up Fast burn, used on ZZ430 crate engine, aluminum 210cc intake ports.
12480005 38cc 2.125 1.625 2000 LS1, GTZ, Aluminum,
12480011 48cc

1997-up Bowtie SB2.2, 2nd version of SB2, mirror ports, revised valve, angle plug location
12506450 cc

1987-95
350
12509859 cc

1987-94
305
12516852 cc

1987-95
350
12551561


1996 Gen. 2 LT1 350
12552520 cc

1997-up Vortec truck 350
12554290 cc

1994-96 Gen. 2 LT1 350
12555690 cc

1996 Gen. 2, LT4 350
12558059 64cc 1.84 1.50 1997 Vortec, truck 350
12558062 64cc 1.94 1.50 1998 L31 Vortec truck, 170cc intake ports. 350
12558806


1997-98 Gen 3 LS1 Aluminum 350
12559853


1999 Gen 3 LS1 Aluminum 350
14008856


1979-81
267
14010201


1982-85
305
14010516


1980-86
350
14011034 64cc 2.02 1.60 1980 Bowtie, 184 cc intake ports, angle plug, Phase 2 head 350
14011049 55cc 2.02 1.60 1982 Bowtie, aluminum , angle plug, 180 cc intake ports.
14011083 64cc 1.94 1.50 1985-86 Crate motor,285/300hp
14014415
1.72 1.50 1980-85
267/305
14014416 58cc 1.84 1.50 1980-86
305
14014440 58cc 1.84 1.50 1980
305
14019821


1980-86
350
14019924


1979-81
267
14019926


1980-86
350
14020517


1980
350
14020555


1981
305
14020556


1981
350
14022056


1981-85
350
14022206


1980
350
14022301


1980-86
305
14022601 58cc 1.84 1.50 1980-86
267/305
14022801
1.72 1.50 1980-86
305
14034806


1978-82
267
14034808


1980-86
350
14034808 73cc 1.94 1.50 1996-up Gen 1 Good wrench 350
14034810


1980-86 Truck 350
14034811


1980-86 Truck 350
14039122


1981-86 Truck 305
14039121


1981-86 Truck 305
14071114


1980-86
350
14075381


1980-86 Truck 350
14079261


1986
350
14085844


1980-86 Truck 350
14085963


1986 350 350
14089119


1986-88
350
14094093


1986-88
350
14094093


1986-88
350
14094093


1986-88
350
14096217 64cc

1985-86 Crate motor, 285/300hp 350
14101081


1987-95
305
14101083 64cc

1987-up Gen 1, also used on crate motor 350
14101128 58cc

1986-87 Aluminum, angle plug 350
14102187 58cc 1.84 1.50 1987-91
305
14102191


1987-up
305
14102193


1987-up
350
1816887 60cc 1.72 1.50 1963 Made in Canada 283
24502559


1996-97 Bowtie, SB2, 1 st version, mirror ports, aluminum, 196 cc ports.
25500141 42cc 2.10 1.625
Buick, chevy aluminum 10 degree heads, 235 cc intake ports.
3986316 76cc 1.94 1.50 1971-72
350
330545 76cc 2.02 1.60 1973
350
333881 76cc 2.02 1.60 1974-75
350
333882 75cc 1.94 1.50 1974-80
350/400
340292 64cc 2.02 1.60 70s angle plug head
354434 60cc 1.72 1.50 1975-79
262/267/305
358741 76cc 1.72 1.50 1976-79
305
3636839 cc 1.72 1.50 1955
265
3703523 67cc 1.72 1.50 1955
265
3713358 cc 1.72 1.50 1955-56
265
3713569 cc 1.72 1.50 1955-56
265
3725306 56cc 1.72 1.50 1956 Corvette head 265
3731539 60cc 1.72 1.50 1957 Corvette 283HP 283
3731554 70cc 1.72 1.50 1957-62
283
3731556 cc 1.72 1.50 1957 Made in Canada 283
3731762 56cc 1.72 1.50 1956 Corvette 2x4 Carbs 265
3731544 60cc 1.72 1.50 1957-61 Corvette 283
3737775 75cc 1.72 1.50 1962-67
283/327
3740997 76cc 1.94 1.60 1957 1x4,2x4, FI Corvette 1957
3743096 cc 1.72 1.50 1962-67
327
3747363 cc 1.72 1.50 1957-61
283
3747460 69cc 1.72 1.50 1959-67
283/327
3748770 60cc 1.72 1.50 1955-62 1x4,2x4 FI Corvette 265/283
3748772 69cc 1.72 1.50 1957-65 1x4,2x4 FI Corvette 283
3755537 69cc 1.72 1.50 1957-62 2 Brl 283
3755549 60cc 1.72 1.50 1957-62 Car and truck, 2 bbl 283
3755550 60cc 1.72 1.50 1957-62 1x4,2x4 FI Corvette 283
3755539 60cc 1.72 1.50 1958-62 Truck 283
3755585 cc 1.72 1.50 1962-67 Truck 327
376450 76cc 1.72 1.50 1975-81 6 or 7 exhaust bolt holes 262/267/305
376455 75cc 1.72 1.50 1980-84
350
3767462 62cc 1.94 1.50 1962-67
327
3767465 60cc 1.72 1.50 1959-61 1x4,2x4 FI Corvette 283
3767754 60cc 1.72 1.50 1959-61
283
3767792 cc 1.72 1.50 1960-64
283
3770126 cc 1.94 1.50 1967-70
327/350
3774682 69cc 1.72 1.60 1960-67
283/327
3774684 75cc 1.72 1.50 1962-64
327
3774692 60cc 1.72 1.50 1958-64 1x2,2x4 FI Corvette 283
3782461 62cc 2.02/1.94 1.60/1.50 1961-70 Double hump heads, no accessory holes 160 cc runners 302/327/350
3782461x 64cc 1.94 1.50 1960-63 Double hump heads, no accessory holes 172 intake runners 283/327
3795896 60cc 1.72 1.50 1958-72
283/307/327
3798996 cc 1.72 1.50 1963-67
327
3814482 75cc 1.72 1.50 1962-67
283/327/350
3817680 cc 1.72 1.50 1959
283
3817681 cc 1.72 1.50 1962-67
327
3817682 cc 1.72 1.50 1961-62
283
3836839 cc 1.72 1.50 1955
265
3836842 cc 1.72 1.50 1957-67
265/283
3837064 67cc 1.72 1.50 1958-62
265/283
3837065 cc 1.72 1.50 1955-56 Truck 265
3837775 75cc 1.72 1.50 1962-67
283/327
3848720 cc 1.72 1.50 1957-58
283
3854520 61cc 1.72 1.50 1962-67
283/327
3874480 69cc 1.72 1.50 1960-67
238/327
3884520 60.5cc 1.72 1.50 1960-67 Some marked "Made in Canada" also used by studebaker 283
3890462, 3891462 63.3cc 2.02,1.94 1.60,1.50 1962-68 Double hump heads, no accessory holes 302/327/350
3901068 64cc 1.94 1.50 1987-up Crate motor, 285 HP 350
3911032 70cc 1.72 1.50 1968-70
307/327
3912264 cc 1.72 1.50 1958-62 car,truck 283
3912265 cc 1.72 1.50 1963-64
283
3912311 cc 1.72 1.50 1965-67
327
3912313 cc 1.72 1.50 1965-67
327
3917264 cc 2.02 1.60 1967 Z-28 Camaro 302
3917290 cc 1.72 1.50 1967-70 truck 307/327
3917291 63cc 2.02,1.94 1.60,1.50 1962-69 Double hump heads, no accessory holes 302/327/350
3917292 64cc 2.02 1.60 1967-69 Corvette 350HP double hump 327/350
3917293 75cc 1.72 1.50 1968-69
307/327
3927185 70cc 1.72 1.50 1968-76
307/327/350
3927186 63cc 2.02,1.94 1.60,1.50 1968-72 Double hump, no accessory holes 302/350
3927187 64cc 2.02 1.60 1969-70 Double hump heads, no accessory holes 350
3927188 75cc 1.72 1.50 1969-70
307/327
3931633 cc 1.72 1.50 1968-73
307
3931635 cc 1.94 1.50 1968-76
350
3931638 cc

1968 truck 327
3932441 76cc 1.94 1.50 1967-79 152 cfm runners 327/350
3932441x 80cc 1.94 1.50 1969-70
350/400
3932454 cc

1968-79 truck 307/350
3946812 cc 1.94 1.50 1969
350
3946813 cc 1.94 1.50 1969-79 truck 350
3947040 63.3/64cc 2.02/1.94 1.60/1.50 1968-70 Right angle casting , good HP head used in trucks, no accessory holes 302/327/350/
3947041 63/64cc 2.02/1.94 1.60/1.5 1968-79 Right angle casting, Good HP head used in trucks, no accessory holes. 1968-79
3961598 76cc 1.94 1.50 1970-76
400
3964286 cc

1968-77
350
3965742 cc

1970 over the counter angle plug
350
3970126 75cc 1.72 1.50 1967-79 148.3 intake cfm, 87.9 ex cfm 327/350
397041x 64cc 2.02 1.60 1969-70 Right angle casting . 1969-70
3973370 64cc 1.94 1.50 1969-70 over the counter, angle plug.
3973414 64cc 2.02 1.60 1970 LT1-370hp, double hump 350
3973487 75cc 2.02/1.94 1.60/1.50 1968-79 used on 71-72 LT1 350
3973487x 75cc 2.02/1.94 1.60/1.50 1698-73 Corvette LT1 350
3973493 76cc 1.94 1.50 1970-76 143.6 cfm intake, 87.2 ex cfm 400
3986339, and X 74.5cc 1.72 1.50 1968-79 car, truck 307/350
398633x 76cc 1.94 1.50

350
3986388 cc 1.72 1.50 1968-79 truck 350
3991492 64cc 2.02/1.94 1.60/1.50 1968-73 LT1, camel hump heads, accessory holes, straight or angle plug 327/350
3998916 76.2cc 2.02 1.60 1972-75 Corvette LT1, screw in studs 350
3998920 cc 1.94 1.50 1972-75
350
3998991 74.5cc 1.72 1.50 1968-79
307/350
3998993 75cc 1.94 1.50 current Good wrench crate motor 350
3998993 75cc 1.94/1.72 1.50 1698-79 150 cfm intake, 91.1 cfm ex. 307/350
3998997 76cc 1.94 1.50 1971-73
350/400
4079261 cc 1.94 1.50 1975
350
462624 76cc 1.94 1.50 1975-86
350/400
468642 75cc 1.72 1.50 1975-84
350/400
471513 cc 1.72 1.50 1979-81
267
517513 cc 1.72 1.50 1979-81
267

Crank Numbers

Block Numbers