The casting numbers don't really tell you much. You can see from the casting if the block is a 350 or 305 block etc but it doesn't tell you much about the engine itself or what exactly it came from.

I looked through all the Cxx codes again and there isn't any 327 with a Cxx suffix code. If you made a 327 into a 333 then you probably have the proper pistons for the 327's stroke however the block never came with a 327 crank. It looks like someone took a 1970 350 block and put a 327 crank into it. With the casting number you can claim it came from just about anything however the code stamped on the pad claims otherwise.

Since you've bored it out, changed the cam etc, does it really matter what it was originally out of now? It's not original or numbers matching any more.

 

www.mortec.com

 

just trying to see if the previous owner was telling the truth....

 

From what you've shown us I'd say no. The block has the correct casting number to be from a 68-69 327 but the date and suffix code say it wasn't originally a 327 block and it wasn't from a Vette.

Too many people get suckered in when buying third gens when the owner says it's a 350 when casting and suffix codes say it's only a 305.

 

so i got screwed?
great....

w/e it runs great and has good hp/tq

 

That casting # is listed for 69-76 350 blocks. The date would reflect a 1970 block and most likely the 350/250 mentioned earlier. So no, it's not a Corvette 327.

 

People seem to get too hung up on details. "It's a 327 Vette engine, It's a LS6 454" etc. Unless you're buying it to put back into a similar car to try and make a numbers matching car or you're racing in a class that requires original casting parts, what the engine originally was doesn't mean much. You're stripping it down to make something different so it's not a "Vette" engine any more anyway. You could just as easily use that block and install a shorter stroke 302 crank in it and claim it's an original 302. Finding a large journal short stroke crank is the hard part. The shorter stroke of the 283 engine had small journals and won't fit. The 307 crank would work but it's cast, not forged.

Same goes for people still trying to find junkyard camel heads. Unless you're building a period car, why bother? 30+ years ago these were good heads but with what's available in the aftermarket now, old camel heads are just boat anchors for performance. You can get more bang for the buck with more modern heads.

 

i was really just trying to see if he was lying or not....

i could care less....