Dudicus, your first post says you're going to rebuild the bottom end and you're hoping it doesn't need to be bored and honed ...but you probably know it's going to have to be bored and honed ,it's a 1974 stock short block, right? So lets just assume so. ..and now you're considering tossing those wasted worn out heads on there? Nah brother... you don't wanna do that. I'm jkn with you now but I'm completely serious with the advice ive given you... cuz tossing those heads back on the better sealing bores n rings are gonna suck some ******* oil down the intake valves of your new Cruiser motor ...and it will soon be a cruster motor.
You'll be wondering why the thing starts detonating in a year and has higher than before cranking compression..and to throw it further into imagination land...perhaps some "run on" as well.
You don't have to port them, just have a shop cut the VJ using a bowl sweep lower cut and simply leave it or just literally transition the cut to the as cast so it isn't instead a curb.
Otherwise why bother with any of that just put the 340 cam in there and go Cruise to Missouri with some heavier oil and a few extra quarts in the trunk
