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Discussion Starter #1
After additional retorching the crank bearings are tighter with slight
difference at ends. 1 UK mechanic who has raced and worked on
US cars for thirty years says he wouldn't worry and has driven them
with much looser clearances, etc. Others insist that it makes a difference.
So excuse the confusion. We are given to understand that the C3's
were never superbly precisioned on production. We are all ears to
everyone's opinion though, we just don't want to become alarmist. We
appreciate all advice and inputs and review them seriously. !
 

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Mass production is a science in "just good enough" and GM has a Phd. in that. We, as hot rodders, want everything to be as close to "PERFECT" as we can possibly get it.

On the flip side, GM spent lots of $$$ on figuring out how tight (or loose) parts should be and live happily together, then provided us with the dimensions they suggest. And oddly enough, they work.

Sent you a PM too.

:cheers:
 

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Mass production is a science in "just good enough" and GM has a Phd. in that. We, as hot rodders, want everything to be as close to "PERFECT" as we can possibly get it.

On the flip side, GM spent lots of $$$ on figuring out how tight (or loose) parts should be and live happily together, then provided us with the dimensions they suggest. And oddly enough, they work.

Sent you a PM too.

:cheers:
Translation=It's fine, be happy.:thumbsup:
 

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Translation=It's fine, be happy.:thumbsup:
:laughing: :laughing: :rolling: :crazy: :lookinup:

De Ja Vu all over again.....40 freeking years.....drags, Pontiac clan saying to me, a budding hotrodder age 24 or so, having lost my first car, a '60 vette in a wreck, could not fix it and insure it, so had to jump ship into ...Pontiacs...

well the clan says....leave it the **** ALONE, fine tune everything rebuild to super fine specs, clearance for racing, but stick damn close to stock parts as they kick hell outta anything aftermarket.....

over the years, that advice is pretty well accurate too....

most aftermarket stuff sux....

:nuts: :huh:
 
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