Ring gap discussion.

[DolSVT00]

Originally Posted by Lurch

This is out of the Ford 5.4 Lightning Manual Top Ring 0.23-0.49, 2nd ring 0.23-0.49, Oil rings 0.006-0.026 Ford tech book on modular 5.4 Supercharged Just retyping out of a manual. ( Also Piston should be Measured with outside Micrometer and Cylinder should be measured Top middle and bottom with a inside micrometer to determine clearance's then Ring gap can be figured. My 2 cents

Ya, I know what the stock ring gaps are. Last time I had mine set I went with what Manley tells you to do and added a coouple, and in my opinion is too tight.

For a .020 over engine running their pistons/rings they want you to be like 0.018 on the top and 0.011 on the bottom.