Were can i find dome pistons for 400 b-block engine ? Mopar Perfomance P3690831 are out of stock......

I have je in my 451

ross also

If you're looking for something to use with a stock stroke and rod length, I think you'll have to have them made = expensive.

What compression are you shooting for? Drag car or street/strip?

This is only my opinion but I've always liked a flat top piston at zero deck or real close to it. I think it promotes good flame travel and if set up right with quench it can really make nice power and still use pump gas on the street, and maybe mix in 50% race gas at the track or just one gallon of race gas like I did.

I had 2 different big block street cars that ran high 9's with flat tops and it seemed like a lot of guys that were running slower had dome pistons. This is just my opinion, and I'm sure there's plenty of big dome high compression cars that fly but a lot of them I saw kinda seemed like a waste of race gas money.

Here is a stock stroke 400 with JE domes. These were shelf pistons when we bought them but that was a few years back.

Andy...... What length rods in that?

It was a long rod engine, 6.965 if I recall correctly. Manley used to make a rod that was Mopar big end, 0.990 small end and Hemi +0.100. Nice rod but I don't think it is available anymore.

So that would have used the normal "451" piston then.

440 source has one with a 1.32" ch that works with 3.75, 3.9" or 4.15" stroke with the right rods. It's made by Icon.