I'd also put 500 hp at the limit, my 511 horse 427" small block Cobra has a cast crank with a 5 speed, but in a light car it's almost impossible to load the motor up very hard on the street.

The heavier the car the more resistence/load you have countering the inherent twisting motion of the crank, if you get into a detonation situation under full-hook/high load and bad things can happen. If you're going to run on street tires I think 500 is safe in an A body, but if you're running Drag Radials or better and really plan on thrashing it around invest in a little extra piece of mind.


As said by the time you balance a cast crank you don't wind up saving much over a forging

Last edited by Streetwize; 01/15/11 04:55 PM.

WIZE

World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker!

https://www.youtube.com/watch?v=-mWzLma3YGI

In Car:

https://www.youtube.com/watch?v=PjXcf95e6v0