Mopar 284/528 mechanical camshaft

Yes the Mopar cams may be old technology but it was WAAAYYY ahead of it's time when introduced. They have a very fast ramp rate compared to alot of cams yet today. In fact their still slightly more aggressive than most of Comps. It's only in the last few yrs. that Comp and Lunati have started taking advantage of the larger lifter dia.

Just to note I also had alot of problems with Comps lifters doing exactly what Bob's did. First set lasted 150 miles and started clattering. Sent them to Comp and they warrantied them and I put in the 2nd set. They lasted about 800 miles then 4 collapsed and wouldn't pump up. We also had problems on a buddies 454 pickup with a Comp xe268. He's getting ready to yank it and junk it and get a Lunati. I swapped mine out for Lunati Hyd. and it runs allot stronger than the Comp. and I've had no more lifter trouble. I myself like the Lunati profiles a little better than the Mopar grinds but their not real far apart. I just recently talked to Jim @ Racer Brown and his suggestions sounded very reasonable. Real nice fellow too. And prices are good. I'm hopefully building a stroker this fall and going to give him a try.