What are the 420a stock cranks able to hold power wise. I am looking for upwards of 450hp and 375 and up torque. Will the stock cast crank handle this? Also if not where can I get a Machined Forged one? I already have eagle h beam rods and JE pistons with an 8.8:1 compression ratio.

 

i dont think the stock crank sould have a problem holding up to that.....i ran about 375 hp on my stock crank with no problems