Quote:
Originally Posted by lust4speed
As far as price and quality, I was told that the lower priced lifters like the Morel and their re-brands were cast body while the top quality Comp, Crower, Johnson, and Hylift Johnson had tool steel bodies. The reason to spend more money was that the cast body lifters were not up to the task of high RPM usage and were more for drivers that were never punished. I do see the adds for high end stuff bragging about tool steel.
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I”ll go out on a limb here. But I think that is actually backwards to what I know about lifters. Morel is actually the one that has some very high end short travel HR lifters with billet lifter bodies, just not for Pontiac’s. Comp, Hylift, Johnson’s and the regular morels are all a cold formed steel alloy, none of them are billet steel. Morel has a floating axle (after 2015), they may actually be the leader on the axles assembly as far a durability. It seems like it is more machining for tight bleed rates and check valve design are where they fall short.