hello,i am thinking of building a 400,was curious if anyone knows what piston to use to get the compression up?i have a nice block that probably could be honed up and b ready to rock,does anyone have a part # on maybe a descent set of pistons for a 400 or a # for some .020 over 440 pistons that would get the comp.ratio up to around 9.5-maybe 10.0?not really sure of the heads that i am gonna use yet,gotta a descent set of 452,s that have been milled to 80cc chambers that i am thinkin of using,they also have been ported some,thanks

Though I am not a fan of them check keith black pistons , they should have something with a compression height closer to giving you a zero deck piston , something about 1.920 would fit nicely and it will have a too big valve relief to help keep compression in check with those open chamber heads.