Quote:
Originally Posted by JSchmitz
You all have probably heard Chevy people talking about old LT1's etc. having "high nickel blocks". My old engine builder (now retired) told me that all Pontiac blocks are high nickel content.
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Had some street driven Pontiacs that had virtually no cylinder ridge at 100k miles.
Bought an original owner 67 executive for the 400 for a GTO build that was missing an engine.
When we pulled the heads off and measured the bores most had worn over .047 and the block had to be machined to 60 over to clean. original std pistons to.
Same engine- the crank measured as new and just a micro polish took care of it.