Forget the part-by-part cost comparison. Examine the horsepower-per-dollar comparison.
Roush's 511 that makes 572 horsepower is a 1.12 horsepower-per-cube, under achiever -
for $50K plus in Tin's case.
That will not sound like a 'freight train'. It will sound like money flying out of your pocket.
Keith, Barry and others here easily make 650 HP for
half that cost. And if you only want 570 HP they'll make it in smaller displacements for far less cash.
Keith's right about the assemblers and dealers being Roush cheerleaders.
