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1966 GMC 305 V6 Service
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04-17-2013, 12:06 AM
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Rufton
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Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
Re: 1966 GMC 305 V6 Service
I used inside and outside micrometer to check cylinder wall clearances and bearing clearances.
These pistons have 4 ring grooves.
Two pictures of oiling slot which is under oil ring.
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