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Originally Posted by Blown353
Don't mean to rain on anyone's parade but a SR rev kit won't work on HR's-- at least if you buy a Comp rev kit and have Comp HR lifters. Been there, done that-- the lifter buttons are totally wrong. Had to send the Comp kit back and get a Hydra-Rev.
Troy
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Yep, that's why mine is sitting here in a box and not in my lifter valley! The Comp kit requires "full-round" lifters.
Pretty much every cam company makes a kit. HydraRev is just AFR's brand name for it.
With the engine apart, it can be pretty inexpensive insurance against valve float. I wouldn't expect tons of power or whatever. But it's good to have them on high-winding engines. Any kind of roller lifter is heavy and risk launching off the nose of the cam. Roundy-round guys use them alot. I'd have one in if I had bought the right one at that point of my build-up. But it didn;t fit and I was like "eh" and put it aside.