Lets give him the benefit of doubt- he probably just didn't know about the weaker 557 blocks, at least when he started the project. I didn't know about them until becoming active here. The receipts all look good to me and the guy that ported the heads obviously assumed they were going on a 400 with flat top pistons.
The big question I have is why the engine was built with so much compression- I get at least 10.5 and that's assuming a .020 deck height. It seems to be working OK and making great power but it must be on the razor's edge. I definitely would not put much vacuum advance on it. And figure on upgrading the cooling system to get the temps down especially on hot summer days.
Can't speak to longevity of the block since I have absolutely no experience there.
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1969 Lemans vert, matador red, 462 CI, 3.07 12-bolt posi
1974 455 TA, admiralty blue/red interior HPP "cover car" - sold
"The best way to show a car is to drive it"
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