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I installed a set in a 350 I built for a friend. They are paired up with a mild Summit cam, the engine is in a squarebody that he daily drives. They have about 4k miles and are still quiet. I would like to pull them and check the DLC coating this winter (I’m real curious). The springs are 110#...
I was cruising Comps site when they popped up, I was surprised at the price… they were less than Chevy lifters. Though I would give them a shot since I don’t have hardly any money in the engine.
Exactly…couldn’t wait to take them off and hear it uncorked. I wiped a cam out on break-in a couple years ago so always use mufflers now so I can shut her down at the first “tick”.
I tried a set of the Comp DLC hyd lifters on a 440 build I put together with some spare parts I had laying around.
Comp DLC hyd lifters
Lunati 703 Cam
Cast crank
ICON pistons
Below are some videos…
Break-in
Idle
I’m running the Comp Evolution lifters on a Hughes cam, no issues so far. They are fairly quiet, not sure about the higher RPM…I haven’t been much past 6000.
I see Comp Cams have the DLC lifters in stock for our engines. Has anyone tried them yet? I used a set in a small block Chevy I built for a buddy last year, no issues after 2500 miles.
I will see if I can get you some pics. The panel was a door kick plate that I bought from Amazon…it was already black crinkle finish, just cut it to size. The car belongs to my son and no issues so far. The GTX is mine.