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Discussion Starter #1
Hi All trying to find out year and size. Back by distributer on top of block is C 102. Head manifold has 7h1 and 350 stamped on block.
 

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Looks like 10 March 1972 (C=March 10=day 2=year) casting 350 with the 1972 heads, 175HP 1.96/1.66 valve size with originally a 7.6 compression ratio.

Found here: Cylinder Heads

-Norm
 

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Looks like 10 March 1972 (C=March 10=day 2=year) casting 350 with the 1972 heads, 175HP 1.96/1.66 valve size with originally a 7.6 compression ratio.

Found here: Cylinder Heads

-Norm
Yep, thats what I have in my 72 Lemans. And the actual valve size is an odd combination, 1.96/1.77. I found out on another Pontiac site from a guy who builds engines. He's seen a few 7H1's and they all have that odd valve combo.
 

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Thanks for the help all. I Have a 68 GTO that has that engine in it. With a saginaw 4 speed. Would that engine be a good engine to rebuild? It needs alot of work. If not what is it worth?Bringing the car back from the dead slowely lol.

Thanks
Tom
 

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"Good to rebuild"? Well, that depends quite a bit on you and what you want to do with the car. If you care about value, investment or resale, then no -- having a 350 in a 68 GTO hurts it a lot. Performance? again not so good. However, if you want a relatively economical driver, it's not a bad way to go.

Bear
 
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