piston CC ?

Greg Reimer 7376 · 04-28-2022, 10:24 AM

Sometimes with a 4 eyebrow flat top piston,327 or a flat top 350,if the valve clearance eyebrows are near or at minimum, and your deck height is near minimum, piston to valve clearance becomes an issue. It then becomes an issue as which method to employ to arrive at the correct piston to valve clearance. Machining the valve clearance notches seem to be the best way to gain piston to valve clearance with the removal of the least amount of metal anyplace else. Excessive deck height gives up a lot, and since the bore diameter is always less than the inner diameter of head gasket bore openings, that would give back even more. Keeping things as close to optimum as far as the total CC's removed is the goal here.

04-28-2022, 10:24 AM	#6
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,135 Likes: 172 Liked 705 Times in 219 Posts	Re: piston CC ? Sometimes with a 4 eyebrow flat top piston,327 or a flat top 350,if the valve clearance eyebrows are near or at minimum, and your deck height is near minimum, piston to valve clearance becomes an issue. It then becomes an issue as which method to employ to arrive at the correct piston to valve clearance. Machining the valve clearance notches seem to be the best way to gain piston to valve clearance with the removal of the least amount of metal anyplace else. Excessive deck height gives up a lot, and since the bore diameter is always less than the inner diameter of head gasket bore openings, that would give back even more. Keeping things as close to optimum as far as the total CC's removed is the goal here.