I am starting to collect the parts for my 230 rebuild with the 250 crank. I recently bought 307 pistons (Sealed Power 295AP40). These will are 0.040 over flat top pistons with the relief valve guides.

I am now looking for piston rings. Does anyone have experience with the Sealed Power Piston Rings, or the Enginetech rings?

Sealed Power Rings, Part number E245X, Cost: $42.79
Enginetech Rings, Part Number R38858-040, Cost: $19.84

I am not just looking for the cheapest option, but a good quality set of rings.