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GMC 270 Piston Clearance #1601047 04/02/2026 2:17 PM
Joined: Nov 2025 Posts: 50 Iowa G G508 'Bolter
G508 'Bolter G Joined: Nov 2025 Posts: 50 Iowa	Fitting the pistons on my WWII GMC 270 engine and was wondering what piston clearance you recommend. The specs I have from the military manuals show a clearance of .0037" (bottom of skirt) That's loose by todays standards but does that sound reasonable for stovebolt engines?

Entire Thread
Subject	Posted By	Posted
GMC 270 Piston Clearance	G508	04/02/2026 2:17 PM
Re: GMC 270 Piston Clearance	klhansen	04/02/2026 7:48 PM
Re: GMC 270 Piston Clearance	crenwelge	04/02/2026 8:40 PM
Re: GMC 270 Piston Clearance	Gdads51	04/03/2026 1:17 PM
Re: GMC 270 Piston Clearance	G508	04/03/2026 2:45 PM
Re: GMC 270 Piston Clearance	Hotrod Lincoln	04/07/2026 3:51 PM

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