Re: Ruddertwin Jugs

[chris-p]

Im assuming this piston is 2.5000"? (I am only using a digital vernier, my 2-3" outside micrometer is at work.

So, I believe I should have the machinist bore out the cylinders to 2.5025, which would be at the bottom end of the cylinder to bore gap posted by Hotrod. That would still leave an out of round. Perhaps I go to the upper limit of the range and bore out to 2.5040.

Ill have to check my ring end gap, see how much they are worn, and decide from there. Boring out too much may leave my end gap too high.

Are NOS rings hard to come by for these? I personally have not seen them.