Comp Cams Pro Magnum 440 Steel Rockers ??

Has anyone used the subject rockers on a 500 Hp drag race 440 with a .590" lift, solid lifter cam. This is in a 11 second B body with 440 Source heads and a 727 automatic.

Thanks in advance for your comments!

Hi,Al! Give us some more info about your combo..

I believe the rockers are only rated for 350 LB or less open spring pressures.

No, but I have used them on a 499.75RWHP 451ci b engine with a .630 roller

iirc comp say they are good to ~ 400 pounds. they can be bushed to increase load capacity, as the problem with them at high pressure has been galling of the shaft.

Ive ran a set for 4 years and about 5000 miles with at least 400 passes with them. There not "recommended" for spring pressure over 350 ish, but Ive ran over 600 lb springs with a 640 lift roller cam. Yes the shafts do show some galling but besides that they've held up pretty good.

I used em on my last 470 combo w/a solid Isky cam at .590-.610 lift and went mid 10`s and drove it everywhere for 4+ years and sold em to get my H-sharps for the roller I now run. They`re still going strong in another combo.