I acquired an abandoned 63 430 build. I looked these pistons up on line and it seems the PST-2182 piston was cast for both the 430 combustion chamber designs which is wrong. It looks like it has more in common with the 63-65 piston.
A few weeks ago I was at a builders shop where a noisy 430 was torn down. It had a set of Egge pistons with the correct step design but no wrist pin off set.
A third set I have seen was in a customers car a few years back. I don't know the manufacture but they were flat tops.
Just as the 332 and 352 pistons you would think that if a company had the time and resources to make a piston they would do some research and design them correctly.
