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1970 Chevelle

2K views 3 replies 2 participants last post by  poncho62 
#1 ·
Hi!

I'm working on a 1970 454 SS. I think it's a clone. I'm trying to determine the details of this BB engine.

Here's the numbers:
Above timing chain cover - T 10271 RR
Block in front of right head - C9F 129188

Can anyone provide some information?

Thanks!

Ed
 
#3 ·
Poncho62,

Thanks for the reply. I had already checked this site, but couldn't find the codes I have. I have rechecked the numbers twice. The code above the timing cover clearly ends in "RR". And the number on the block (passenger side, front of head) starts with C9F. I can't find an alpa-numeric code like this either.

Thanks again!

Can anyone else provide more information?

Ed
 
#4 ·
I have always used the suffix code for Chevy engines. I have found it the most accurate. There are other casting numbers on the side of the block and at the back above the belhousing. I find them more general however.

It is possible that it was a replacement motor...........thus the strange numbers/letters.

Canadian blocks also sometimes didn't have the suffix code, but I have seen that mostly on small blocks.

Maybe, someone else knows more.
 
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