Saw your info and was thinking about using KB107 4.000 pistons in a donor 99 dodge 360 magnum for my 99 Dakota rt. Just checked #1 stock piston and it is .044 below deck height. What r ur thoughts on using the KB107, seems to me they will be above my deck height a fair amount...........
You can search for a more “Magnum” specific piston or use the KB-107’s with a thick head gasket. Cometic will custom make a head gasket for you if a regular one is not available in your thickness.
For an example, if the piston is .015 out of the hole, and you want a .035 clearance
(your call really, this just an example)
A Fel-Pro head gasket @.050 thick should be possible.
If you wanted to run a quench clearance of .032, a Cometic gasket should be custom ordered. IIRC, there thinnest gasket is a .027. They can make you a gasket at a .100 or thicker if you want.
Run your thoughts on this through a compression ratio calculator as long as you know how much the piston protrudes above deck and your cylinder head cc amount.
