Anyone dyno'd these heads yet?
 

525hp Crank, doesnt that mean after you add, intake, TB, intake manifold, maf, headers/y-pipe and exhaust, and get it tuned?

http://www.lmperformance.com/5910/1.html

Yes and of sourse the heads and cam. You need supporting mods to.

exactaly what i thought, thank you now i can use this post to prove to a gullible "other" :cheers:

Yep no problem, just remember if it is advertised hp its usally always rated high and at the crank.