I'm working on a 26. The engine still had the cast iron pistons with the diagonal cut rings.
I've gotten new rings, and the cylinders look good. However I've found that I've got about .030 end gap on the compression ring when seated squarely in the cylinder. As around 4 thou per inch is a minimum end gap rule of thumb, will this be good enough to seal, or does it need to go oversize?
ring gap differs a little for cast pistons.
8to12thou for top
30 is a little to much to start with.
Hey Mike, probably have to get some inside measurements, maybe the engine was bored out. See what size the pistons are....Seems like a lot if that is a standard bore...Are they Hastings rings? Jim Derocher AuGres, Michigan