[ZONES89RS]

SBC HEAD CASTING #:

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, 1.72/1.5, 1.94/1.5 or 2.02/1.6 valves
458642.....75-84...350..........350
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
3767460....59-60...283
3767462....62-67...327
3767465....59-61...283
3767754....59-61...283..........60cc chambers
3767792....60-64...283
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....67-68...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....67-71...327/350
3973370....69-70...350..........over the counter in US, Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug
3973414....70......350..........LT1-350/370hp, Camel hump, 64cc chamber
3973487....71-72...350..........1.94/1.5 or 2.02/1.6 valves, was also used on '71 350/330hp LT1, 75cc chamber
3973487X...71-72...350..........1.94/1.5 or 2.02/1.6 valves, 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, 65cc chambers
10120928...87-95...350