Quote:
Would you consider using something like a PAC 1232X beehive w/ a light retained on a street roller profile like the extreme energy? Say up to 6500 rpm.


On a BBM with -1 heads that use heavy .800 offset intake rockers?

I don't know if those springs would provide enough spring load to get that package to 6500 without any signs of unhappiness.
Without testing that exact combo on the dyno...... No, I wouldn't use those springs.

Something like an Isky 9915 with tool steel retainers is more my preference.

Though it would be interesting to try some even slower/smoother lobe profiles and some of the new conical springs.

I'll add that if "it were up to me"....... It would get a solid flat tappet cam that didn't have real aggressive lobes along with EDM lifters.

I see way more horror stories around on various forums, for all kinds of different engine makes, discussing some sort of incurable hyd roller lifter problem than I see about solid flat tappet cams going bad(provided proper break in procedures were followed).


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads