Im going to have a 355 flat top engine built, what type of pistons are recomended for a 5.7 rod?

hyperutectic or forged with a coated skirt. have your machinist 0 deck the block to your pistons. then take 64cc heads and shave em .020. that will give you about 11.5:1 ROUGHLY. do all your measurements and calculations correctly. there are a few sites on the web where you can calculate your compression ratio. static and effective.

thanks man..

You should talk to Johny Z he's right in your area but don't have his number,or contact racinparts on this sight he may have it.