I have a std bore 454 short block from gm, I got it second hand from another boat. 30 cc dome pistons (gm 3963550), mismatched but both rectangle port closed chamber heads. Machine shop says the cylinder walls will clean up with only a hone and cross hatch. Over transom headers currently, could move to through transom headers someday. I believe this to basically be a ls6 "clone"?
I am running a jacuzzi wj with a B impeller, which is as I understand similar to berk A impy.
I have a set of retrofit hydr. roller lifters (crane), but no cam to match. The current cam is a solid flat tappet that came in the motor from gm I believe. I am very interested in putting a roller cam in this motor, not looking to go 100 mph or anything, just a good match to the motor and pump combo. Need 3100 to 3800 for sure inside the power band, that is about what we ski at. Boat is a 18 ft, medium to heavy layup.