Help on 408 build

Wyrmrider said
Just a question
why not the KB Step dome KB356?
I helped design the predecessor to this piston just for OP's head 23.5cc
can mill the step dome off if going to closed chamber heads later
will take a trial assembly to get the gasket right for quench clearance dome to head if the heads have been milled much but down to .030 works and I've run smaller checking every chamber
Other choices are the ICONS for the magnum block
you get no quench but you do not have any anyway
(like B3 pointed our)
27 and 34cc plus .020 less compression height
do your math, play with the pins for the balance
Then ask the guys= there are some sharp builders on this site
cheers

The set of magnum dished pistons could get him down to 9.3 SC and if that works with the current cam he could run it like that with his current push rods without the need for expensive gaskets or shims. I talked to another local Mopar guy and he also said 9.5 was about the limit on local pump gas with iron heads.
He could hang on to the LA compression height flat tops he currently has and in the future get some aluminum heads and a more aggressive cam and put them back into service.