i know this has been beaten to death. one can still find pistons available but they are usually high dome cast 12.5:1 compression heavy slugs. when hopping up a hemi, even though cast pistons are still available off the shelf in the original compression ratio, we think nothing about going to custom pistons in any compression ratio we choose even though they end up costing double. has anyone gone the custom piston route when building a 301 by going an 1/8th over on a 283 block? i have a virgin bore 62 block with a forged crank but may not go out to 4". i also have a 67 standard bore block that should go that far. i thought about this the last ten years. combine the best of the two blocks, i think the power pac heads i have are 4720 castings in the 58-60cc range. i'd like to keep the compression close to 10:1 do i continue to search for the old pistons and see if i can mill some of the dome down? or go the custom piston route. why do we do the things we do? i can put any 350 in and tell the dummies at cruise night that it's a 301. what do you guys think?