Cast or Billet crank pulley

[wedge5]

Should I use a cast or billet crank pulley? I have 650hp"ish" and used for racing. I was told that the cast might not hold up to that much power?

 

[fugly]

steel or billet....I have seen more than one cast pulley come apart- not so much HP as it is revs and how fast it revs

 

[19mopar65]

billet all the way

 

[SUPERSTOCKRACER]

i used a marsh billet crank pulley.
but i really dont see any gains from a steel one.