ENGINE IDENTIFICATION HELP

[WBOWERS]

GOOD MORNING,

I HAVE AN 82' ELCAMINO WITH AN UNKNOWN ENGINE CASTING # 3970010
I WAS TOLD TO LOOK FOR OTHER NUMBERS/LETTERS TO GET FOR DEFINITE
ANSWER. WHERE DO I GET THESE. PLEASE AND THANK YOU.

 

[fleming442]

 

[bracketchev1221]

Its a 350 block. That's about all you can find from that. And if the engine has been opened up, none of the other numbers matter because you don't know what has been done to it. The crank could have been changed, it could be bored.

 

[WBOWERS]

Its a 350 block. That's about all you can find from that. And if the engine has been opened up, none of the other numbers matter because you don't know what has been done to it. The crank could have been changed, it could be bored.

EVERYTHING POINT TO 327/350 2 OR 4 BOLT MAIN 69-80 GUESS I NEED TO OPEN IT UP.
I WOULD LIKE TO GET A DECENT CAM FOR IT AND INTAKE. ANY SUGGESTIONS THERE ?

 

[bracketchev1221]

EVERYTHING POINT TO 327/350 2 OR 4 BOLT MAIN 69-80 GUESS I NEED TO OPEN IT UP.
I WOULD LIKE TO GET A DECENT CAM FOR IT AND INTAKE. ANY SUGGESTIONS THERE ?

Right, the 327 and 350 both had a 4" bore. The 327 had a 3.25" crank where the 350 had a 3.48". But worst case its a large journal 327 crank, in a 350 block. Being that the 327 was only 69 before being phased out, I would almost bet its a 350.

 

[WBOWERS]

Right, the 327 and 350 both had a 4" bore. The 327 had a 3.25" crank where the 350 had a 3.48". But worst case its a large journal 327 crank, in a 350 block. Being that the 327 was only 69 before being phased out, I would almost bet its a 350.

THANK YOU FOR THE HELP.

 

[clean8485]

Its a fairly common casting number. GM used that block for various engines from 1969 to 1980. Providing that the block hasn't been decked, there should be some letters and numbers stamped into the flat area at the front of the passenger side of the block deck surface, just ahead of where the cylinder head bolts on. If the stamping is still there, it can help you decode the original application for the engine. As others have already pointed out, the engine could have been modified, so even if you know the original application, the engine could be very different internally.

 

[WBOWERS]

Best I could get. Hard to read though. BUT THE THING DID SURVIVE THE DETROIT GAMBLER 500 LAST WEEKEND. WELL 1/3 OF THE WAY. THEN BROKE EXHAUST MANIFOLD AND SMALL ELECTRICAL FIRE AT STARTER.

 

[Texas82GP]

View attachment 87996 Best I could get. Hard to read though. BUT THE THING DID SURVIVE THE DETROIT GAMBLER 500 LAST WEEKEND. WELL 1/3 OF THE WAY. THEN BROKE EXHAUST MANIFOLD AND SMALL ELECTRICAL FIRE AT STARTER.

I can't read it. You might consider pulling the alternator to get a better look at it, if you want to know what it was in the beginning. It doesn't look like it's been decked so maybe it hasn't been built? What do you know about it?

 

[pontiacgp]

3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4

http://www.nastyz28.com/chevy-engine-code-stampings.php