340/360 head on a 360 magnum

I would run the magnum heads, port them run Hughes springs and retainers. Cracked heads and all.

I bought some shitty reman heads off rockauto with all kinds of casting flash, had a annoying lifter tick that was due to the casting in the push rod area. I had to put in double the time just porting the reman heads the flow was horrible.

But with my set of cracked heads no issues, no coolant leak, no nothing, porting was quicker and easier.