I'm not familiar with the AutoTec pistons? Would be worth a call to them to ask how thick the crown is, and how far down the top ring is. Could work... just need to investigate.

I would look at it this way.

Use what you have, and get to the potential of your parts in hand. That might mean the pistons or 10:1 compression ratio w/iron heads limits you to less boost. But it would still make good power none the less...

or

Sell the motor and start over with a Gen 3 hemi.


I would NOT swap the cam (for ideal specs), swap the heads (to aluminum), build headers, swap the pistons (stronger/comp. ratio), etc... just to get back down to your usable crank and block.