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Click on image for the lowdown. 
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8 members (Cheapskate1229, NJC, 1955 1 Series, baldeagle, 55shaker, Otto Skorzeny, JW51, 68ironhead),
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | A minor detail, but ya all missed one zero in those numbers Pete, just don't want the nebees to get cornfused.
An engine shop would use a bore gauge to check the cylinders for wear then order the oversized pistons and bore the cylinders to fit the pistons. There can be very subtle differences in the piston dimensions so it's always best to have the replacement on hand before you bore. And as Pete posted, the rings are bought to match the cylinder overbore. The rings need to be inserted in the cylinder and the end gaps adjusted before they are installed on the pistons. If there is a lot of wear in the cylinders then the 235 can be safely bored to .060” over.
The crank undersize bearings usually run .010”, .020” and .030” being the limit and above that you either need a new crank or need to have it welded.
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
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