[Smokin04]

Originally Posted by ULTIMATEORANGES

if you could answer my question i could probably answer yours. all i wanted to know is with both motors running the same boost on identical setups would make more power?

They can't have identical setups. The Ford is 61 cubes smaller and has 4 cams and 4 valves per cylinder. If you want to compare similar engine it would be the 351W vs the LS. Only 1 cube difference, both 2V pushrods, blah blah. There are so many combinations that either engine could wear; it's almost impossible to quote who is better. Could go either way.

I look at it this way, take the blower off the Terminator, it still makes approx.320 hp from 281 cubes (1.139 hp per C.I.). And the LS1 makes about the same approx. 320 hp from 350 cubes (.914 HP per C.I.). The efficiency of the Ford 4V wins easily. Stretch the math to equalize C.I. and the Ford makes 395.5 hp at 350 C.I.
Ford 4V > LS1

EDIT: the 5.4 4V on the Cobra R made 385 at 330 C.I. which would equal 408.3 hp at 350 cubes. More than enough to slap an LS1 in the face.