Ken Sungela

Hi,
Please offer any insight into what exactly I have here and if it came from a corvette.
Numbers are as such:
Balancer: 3817173
Right front pad on block: 612??65 F07
Heads: 3890462 J36 on one head, J156 on other
Rt. rear of block: F296
Left rear: 3892657

Transmission:
3952648 on side cover and 39M382762 stamped
3915020 and GM28 near spine
3925660 and P9D30B on casing
3857584 GM on Tail piece
3858403 on Bellhousing

Also, any insight into reasonable market prices for this stuff?
I can get the block and heads cleaned and magnafluxed for $200, but have heard that that doesn't guarantee anything. Not sure if its worth it.

Thanks
Ken

Ken Sungela

more pics.

Dan Hampton

Transmission is April 30, 1969. Close Ratio.

TheSaint

A search on the engine came up with this:
Block:
3892657. 1967 Corvette 327 350 hp L79. Also found on trucks and Camaro and passenger cars
Engine info here: http://www.nyracer.com/engineid.htm

Heads:
1967 Small Block Chevy Cylinder Heads 3890462 462 Camel Double Hump Heads 302

gbvette62

The 657 block was found in 67 Corvettes, and possibly some late 66's too. This block was also used for 67 Z28 302's, as a 327 in 67 passenger cars and trucks, and for 67 Camaro 350's. The block was cast May 29 1966 (F296).

The 462 heads were used on 67 327/300 and 350 horse engines, as well as 67 Z28 302/290's. The heads were cast on Oct 3, 66 (J36), and Oct 15, 66 (J156).

Info seems to be missing from the stamp pad, which would identify the engine further. The F07 would indicate that the engine was cast and assembled at Flint in 1966, by the F07. Prior to 1967, the Flint stamp was an "F", but in 67, it was changed to a "V".

The 403 bellhousing is a Chevrolet bell used with the 10 1/2" clutch, from 64-75. It could be found in just about every Chevrolet, except maybe early Nova/Chevy II's.

The trans is a Muncie, I think from around 68-69, based on the main case numbers.

larrywalk

The exhaust ports have been ported and are considerably larger than stock assuming they match the size of the exhaust gasket..

Ken Sungela

Thanks for the info.
Would it be correct to say the numbers on the right front pad, 612??65 F07, would be most valuable for only one person in the world with the exact car this came from? Otherwise, the casting date is the second most important number since the engine would be applicable to a wider range of cars for someone looking to "match" numbers? When you rebuild an engine, isn't the front right pad milled off, then new numbers stamped on as needed?
Thanks again for the expert info.
Ken

Mike Ward

It appears that the factory surface of the pad is long gone and with it any possible chance of positively linking the engine to the car it was originally installed in. Milling the mating surface of the block during overhaul is a very common practice, 99% of the time completely unnecessary.

What's presently stamped on this pad might be a code used by the rebuilder for identification and possibly nothing to do with what was previously stamped.

Restamping numbers on top of a rebroaching operation to replicate a factory appearing pad is a can of words that always spell 'potential for fraud' to me.