[Mike Taylor 3601]

Precision Products Performance Center (PPPC) has THE BEST tool steel lifter...knock on wood.... I have never had a cam lose a lobe with their lifter and I use all the spring pressure I can get from Pac 1409X.I have always used Bullet and P-55 cam cores with just normal parkerizing,but I think P-55 cores are gone now....
I use PPPC lifters uncoated,w/o extra oil hole, use grooving tool in lifter bore for extra oil to lifter/lobe...
I talked to Tim Goolsby the other day about doing 8620 core (steel roller core) as flat tappet and PPPC tool steel lifters w/DLC (diamond like coating)...Tim told me we could use a DI (ductile iron) core, alot of mild hydraulic rollers are on DI cores... so next one I do will most likely be a DI core with PPPC tool steel lifters