KB243 Hyper Piston Confusion

Siksty7 Dart 270 said
Right on guys. If they listed them as "domed pistons" and not flat tops I might not have gotten crossed up. Yeah I'm thinking of using Magnum heads on a 340 block, going hydraulic roller cam with retrofit lifters, tapping and plugging the oil galley holes below the deck.

Yeah it screws up all the compression calculators too if you're not very specific about how you input everything, which was the issue I was having. Once you treat them like domed piston everything else makes sense.

That's a good plan as far as the heads and roller cam, although those might not be the best pistons for that particular application. If you can have them cut relatively inexpensively that would be fine, you'd have to look at if you can get a true flat top or not cheaper than having the 243's cut for clearance.