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Mod | | | Forums66 Topics128,108 Posts1,056,236 Members48,437 | | Most Online14,466
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: Mar 2013 Posts: 220 'Bolter | | 'Bolter Joined: Mar 2013 Posts: 220 | I have a set of .030 over pistons for a 270 I'm building. What should the piston to cylinder wall clearance be? This engine looks like a recent rebuild, still visible hone marks in the cylinder and the pistons look nearly new and fit snug in the bores. Can I get a reasonable check the old school way with a feeler gauge? This is not a race engine, just a '31 Chevy pickup street cruiser. BUT it will have a turbo on it set to about 12 psi to start with. Also are the old GMC pistons forged or cast. These are he slightly dished ones? THANKS!!
Jay D. | | |
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