Quote: There are 468" engines running around with Thiteks flowing over 400 at .600 lift already. I think these heads are for the 25lb+ boost club.
With what block? They even said the 6.4 block they didn't like going to 440 cubes...
Flow is flow, but torque is king and going from a 512 I currently have would seem like the wrong direction for me anyways.
The 6.4 has a bore of 4.09. So add 4.25 stroke and you have a 437 Cid. With a .010 over bore. The HellCat make 700 HP with a blower. Stock 6.4 block. IMO the block has to be better than that. Matt
