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 GM SBC factory heads by casting number 
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Post GM SBC factory heads by casting number
This is a list of every GM SBC head that I could find. It dates back to pre-historic SBCs up to the latest LS1 stuff. For those of us shopping for heads this can an very useful tool. I was going to make a nice neat grid but gave up on that idea after a few tries so what you see is what you get.

SBC HEADS by factory casting number:

330545.....73......350..........76cc chamber, 2.02/1.60
333881.....74-75...350..........76cc chamber, 2.02/1.60
333882.....74-80...350/400......76cc chambers
340292.....70's.......Over the counter, angle plug, 64cc chamber
354434.....75-79...262/267/305...60cc chambers
358741.....76-79...305
376445.....77-85...350..........76cc chamber, small valves
376450.....75-81...262/267/305..6 or 7 exhaust bolt holes, 60cc chamber
462614.....77-79...305..........60cc chamber
462624.....75-86...350/400......76cc chamber, 1.94/1.5 or 2.02/1.6 valves
468642.....76-up...350/400
471513.....79......267/350
517513.....79......267/350
1816887....63......283..........Made in "Canada", GMC HD truck
3636839....55......265
3703523....55......265
3713358....55-56...265
3713569....55-56...265
3725306....56......265
3731539....57......283..........283 HP FI
3731544....57-61...283
3731554....57-62...283
3731556....57......283..........Truck, Made in Canada
3731762....56......265..........Vette, 2x4 carbs
3737775....62-67...283/327
3740997....57......283..........1x4, 2x4 & FI (exc.-283hp)
3743056....58......283
3743096....62-67...327..........GMC Truck
3747363....57-61...283
3747460....59-67...283/327......70cc chambers
3748770....58......283
3748772....58-61...283
3755537....57-62...283
3755539....58-62...283
3755549....57-62...283
3755550....59......283
3755585....62-67...327..........GMC Truck
3767462....62-67...327
3767465....59-61...283
3767754....59-61...283..........60cc chambers
3767792....60-64...283
3770126....69......327
3774682....60-64...283/327......70cc chambers
3774684....62-64...327..........75cc chambers
3774692....58-64...283..........60cc chambers
3782461....64-66...327......Camel hump,no accessory holes,160/62cc
port volumes,62cc chamber
3782461X...60-63...283/327..Camel hump,no accessory holes,larger
172/64cc port volumes, 62cc chamber
3795896....63-65...283......60cc chamber
3795896....62-64...327......60cc chamber
3798996....63-67...327
3814480....60-67...283/327..70cc chambers, 1.72/1.5 valves
3814482....62-67...283/327/350..75cc chambers
3817680....63-67...283/327
3817681....62-67...327
3817682....61-62...283
3836839....55......265
3836842....57-67...283/327
3837064....56-62...265/283
3837065....55-56...265..........Truck
3848720....57-58...283
3876775....60-67...283/327......75cc chamber
3884520....60-67...283..........Some marked "Made in Canada", 60cc chamber,
also used by Studebaker
3884520....62-67...327..........Some marked "Made in Canada", 60cc chamber,
also used by Studebaker
3890462....66-67...302/327/350..Camel hump,no accessory holes,64cc chamber
3901068....87-up...350..........Crate motor, 285hp, 64cc chamber
3911032....68......307/327......70cc chamber
3912264....58-62...283
3912265....63-64...283
3912311....65-67...327
3912313....65-67...327
3917290....67-68...307/327
3917291....67-68...302/327/350..Camel hump,no accessory holes,64cc chamber
3917292....68......327/350......Camel hump,64cc chamber
3917293....68......307/327......75cc chambers
3927185....69-76...307/327/350..70cc chambers
3927186....69-70...302/350......Camel hump,64cc chambers,accessory holes
3927187....69-70...350..........Camel hump,64cc chambers,accessory holes
3927188....69......327..........74cc chambers
3927188....70......307..........74cc chambers
3931633....68-73...307
3931635....68-76...350
3931638....68......327..........Truck
3932441....69-70...350..........76cc chambers
3932441X...69-70...350/400......80cc chambers
3932454....69-73...307
3932454....69-79...350..........Truck
3946812....69......350
3946813....69-79...350..........Truck
3947040....68......327..........Right angle casting identifier,64cc chambers,
good HP head, used in trucks, no accessory holes
3947041....69-70...302/350......Right angle casting identifier, 64cc chamber,
accessory holes, good HP head
3947041X...69-70...302/350......Right angle casting identifier, 64cc chamber ,
165cc intake port, accessory holes, good HP head
3951598....70......400..........76cc chambers
3964286............350
3965742....70......350..........over the counter, angle plug
3970126....67-70...327/350
3973370....69-70...350..........over the counter, 64cc, straight or angle plug
3973414....70......350..........LT1-370hp, Camel hump, 64cc chamber
3973487....71-72...350..........used on 71-72 350 LT1, 75cc chamber
3973487X...71-72...350..........75cc chamber
3973493....71-72...400..........76cc chamber
3986316....71......350..........76cc chamber
3986336....71......350..........76cc chamber
3986336X...71......350..........76cc chamber
3986339....71......307/350......74cc chamber
3986339X...71......307/350......74cc chamber
3986388....68-76...307/350
3991492....70......350..........LT1,Camel hump,accessory holes,64cc, straight plug
3991492....70-up................over the counter,Camel hump,64cc, straight or angle plug
3998916....72......350..........also used w/'72 350 LT1,big valves, screw in studs,
76cc chambers
3998920....72-73...350
3998991....72-73...307/350......75cc chambers
3998993....72-73...307/350......75cc chambers
3998993....current..350.........Goodwrench crate motors,"Hecho en Mexico",75cc chambers
3998997....72-73...350/400......76cc chambers
3998997....78-84...305/350......76cc chambers
4079261....75......350
10033867........................Aluminum,over the counter Pontiac
23' head,62cc,angle plug, 196cc intake port
10045434........................Over the counter Pontiac 15' head
55cc, angle plug, raised runner
aluminum, "roll over" head
10051101........................Bowtie, aluminum, 55cc, angle plug
raised runner, 196cc intake port
10065202...87-95...350..........Truck
10065203...87-95...350..........Truck
10065204...87-95...350
10065205...87-95...305
10065206...87-95...350
10065207...87-95...305
10088113...88-up...350..........Aluminum, 58cc, angle plug, raised
"D" port exhaust, 1.94"/1.5" valves
10093328........................Over the counter, Pontiac 15' head
aluminum,224cc ports, 61cc chambers,
"roll over" head
10106178...90......350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10106179...90......350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10110810...91-up...350..........Gen. 1
10120928...87-95...350
10125320...94-96...350..........Gen.II LT1, cast iron version, used
on "9C1" Police package, Impala SS,
Cadillac Fleetwood, Buick Roadmaster
reverse flow cooling
10128374...92-up...350..........Gen.II LT1, 53cc, angle plug,
aluminum, reverse flow cooling,
175/68cc ports
10134352........................Bowtie, 45cc, angle plug, "low"
port, 223cc intake port, aluminum,
18' race head
10134363........................NOTE: This casting # has been used
in many different versions of this
aluminum 18' and 15' Bowtie race head.
Different chamber volumes, port
volumes, port locations, valve sizes,
etc. were used. Check this casting
carefully to determine which features
it may have. There are at least 6
different versions as of 11/99.
10147898...95-98...350..........Gen.I crate motor
10159550...87-95...350
10159551...87-95...305
10159552...87-95...350
10159553...87-95...305
10174389...91-94...350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10174390...91-95...350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10185040........................Bowtie, aluminum, 45cc chambers,
1st version, symmetrical ports,
263cc intake ports, splayed valves
10185040........................Bowtie, aluminum, 45cc chambers,
2nd version, symmetrical ports,
240cc intake ports, splayed valves
10205245...93......350..........Gen.II LT1, aluminum, reverse
flow cooling, 175/68cc port volumes
10207643...94-96...350..........Gen.II LT1, aluminum, reverse
flow cooling, 175/68cc port volumes
10208890...94-96...265..........Gen.II, L99, 4.3 Liter V-8, cast iron, reverse flow
10215339...97......350..........Gen.III, LS1, aluminum, 68cc
10225121...94-95...350..........LT5, ZR1, DOHC, 32-valve,
drvs. side, aluminum
10225122...95......350..........LT5, ZR1, DOHC, 32-valve,
pass. side, aluminum
10239902...96-up...350..........Gen.II LT4, aluminum, reverse
flow cooling, 195cc port, 54.4cc chamber, angle plug
10239906...96-up...350.........."Vortec 5700", "L31", 64cc chamber,
170cc intake port, 1.94"/1.5" valves
12367712...99-up................"Fast Burn", aluminum, 210cc intake,
port, 2.00/1.55 valves, 62cc chamber
12367713...99-up................"Fast Burn" used on ZZ430 crate motor,
aluminum, 210cc intake
port, 2.00/1.55 valves, 62cc chamber
12480005...2000.................LS1 "GTZ", aluminum, 38cc, 2.125"/1.625" valves,
angle plug
12480011...97-up................Bowtie "SB2.2", aluminum, 2nd
version of "SB2", 48cc chambers,
"mirror ports", revised valve
angles & plug location
12506450...87-95...350
12509859...87-94...305
12516852...87-95...350
12551561...96......350..........Gen.II, "LT1", aluminum
12552520...97-up...305..........Vortec, truck
12554290...94-96...350..........Gen.II, "LT1", cast iron version, used
on "9C1" Police package, Impala SS,
Cadillac Fleetwood, Buick Roadmaster
reverse flow cooling
12555690...96......350..........Gen.II, "LT4", aluminum
12558059...97......305..........Vortec, truck, 1.84"/1.5" valves, 64cc chamber, best flowing 305 head
12558062...98......350..........L31 Vortec, truck, 64cc chambers, 1.94/1.5,
170cc intake port
12558806...97-98...350..........Gen.III, "LS1", aluminum, 68cc
12559853...99......350..........Gen.III, "LS1", aluminum, 68cc
12564241...01......350..........Gen.III, "LS1", aluminum, 68cc
14008856...79-81...267
14094093...86-88...350
14010201...82-85...305
14011034........................Bowtie, cast iron, 64cc chambers,
184cc port volume, angle plug,
"Phase II" head
14011049........................Bowtie, aluminum, 55cc chambers,
angle plug, 180cc ports, "Phase 6"
14011083...55-86...350..........Crate motor for years indicated.
285/300hp, 64cc chambers, 1.94"/1.5" valves
14014415...80-85...267/305
14014416...80-86...305..........1.84"/1.5" valves, 58cc chambers
14014440...80......305..........1.84"/1.5" valves
14019821...80-86...350
14019924...79-81...267
14019926...80-86...350
14010516...80-86...350
14020517...80......350
14020555...81......305
14020556...81......350
14022056...85......350
14022206...80......350
14022301...80-86...305
14022601...80-86...267/305......1.84"/1.5" valves, 58cc chambers
14022801...80-86...305
14024816...........350..........76cc chambers, 1.94/1.5 valves, Gen.I crate motors
14034806...78-82...267
14034807...78-86...305
14034808...80-86...350
14034808...96-up...350..........76cc chambers, 1.94"/1.5" valves,
Gen.I Goodwrench crate motors
14034810...80-86...350..........Truck
14034811...80-86...350..........Truck
14039121...81-86...305..........Truck
14039122...81-86...305..........Truck
14071114...80-86...350
14075381...80-86...350..........Truck
14079261...86......350
14085844...80-86...350..........Truck
14085963...86......350
14089119...86-88...350
14094093...86-88...350
14096217...55-86...350..........Crate motor, 285hp/300hp, 64cc chambers,
72' or 90' center intake manifold bolt angles
14101081...87-95...305..........Gen.I, 3rd best flowing 305 head
14101083...87-up...350..........Gen.I, also used on crate motors, 285 or 300 hp, 64cc
chambers, 72' center manifold bolt
angles
14101128...86-87...350..........Aluminum, 58cc, angle plug
14102187...87-91...305..........1.84"/1.5" valves
14102191...87-up...350
14102193...87-up...350
24502559...96-97................Bowtie, "SB2", 1st version,
"mirror ports", aluminum, 196cc port, CNC version 280cc port,
38cc chamber
25500141........................Buick/Chevy aluminum 10' head,
42cc chambers, symmetrical ports,
235cc intake port volumes,
2.1"/1.625" valves
33417369...90-up...350..........Gen.I Goodwrench crate motor,
"Hecho en Mexico", 76cc


Thu Mar 02, 2006 9:49 am
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Joined: Fri Jul 28, 2006 12:13 am
Posts: 12
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thats a great idea!! i made a website for all casting numbers like cranks intakes heads and blocks its a download you put it on your hard drive and if you open in firefox go under the edit tab and select find in this page and then you just punch in the numbers and it will find the info for you.. so here is the link!!!


http://rapidshare.de/files/30386794/eng ... s.rar.html

just select free and enjoy!!!!!

the is also a 3 character code you have to put in the box to make if give you the rar


Tue Aug 22, 2006 5:10 pm
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www.mortec.com has all listings for SBC and BBC casting numbers for blocks, heads etc...


Tue Aug 22, 2006 11:23 pm
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http://www.thedirtforum.com/castings.htm


Tue Aug 29, 2006 8:41 pm
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