[Walkaway]

Hello! I’m new to these forums and hope I can get a little information. I’m looking at a 1970 Chevelle SS but have a problem. The car was originally a 396 SS but at some point the engine was supposedly replaced with a 454.

The car still has all the original 396 markings/badges/decals so I figured I would get some information off the engine and look it up. All I can find at this time is a number on the lip in front of the passenger side head and it reads "T6S502662".

I was under the impression that Chevy Big Blocks had the ID stamp in this location but obviously this number isn’t a Chevy number or even in a Chevy format. This leads me to believe that this is perhaps a crate engine. Has anyone seen an engine or crate engine maker that uses markings like this?

Any help is greatly appreciated and thank you very much!!!

Ray

 

[Mike]

Welcome to TC.
You have the partial VIN from the vehicle it came out of.
T = GMC
6 = 1976
S = St.Louis
502662 is the assembly plant sequence number.

Now look on the front of the block above the timing chain cover for the engine id code.

 

[Walkaway]

Thanks for the quick reply! I’ll take a look at the I.D code above the timing chain out of curiosity, but I’m pretty sure I’ll pass on this car. I’m pretty sure a 76 engine is going to be really short on horsepower (250 at most I believe). The going price is pretty steep (to me) for an underpowered Chevelle.
Ray