Mopar purple .528 for a 383?

MidnightSwinger said
Speedmaster victor copies, from a member on here, he did a bunch of work on the to make them “right” on the low deck. I’m getting the heads, offset roller rockers and pushrods. I needed rockers and pushrods for the solid cam anyway and this was a no brainer.

I just have to check everything very close. I have to look out for piston to valve, and valve/bore shrouding. Then I need to see how big of a compression bump I’m in for.

That'll be a BIG upgrade from 906s. Engine Masters did a test on a 440 with Trick Flow 240 vs 270 heads and the bigger heads had gains pretty much everywhere. I do hear P-V clearance can be tricky with factory high-comp 383 pistons though if they don't have valve reliefs. Quite a big intake port to feed 383 cubes but if the rest of the combo is right it'll be a real screamer.