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KingLT1 · 10-07-2019, 10:50 AM

I doubt it's the roller rockers...they should actually be less noisy then a slider type OE rocker with a cam.

Imho .050 isn't enough preload for a LS7 lifter. You should be between .070-.090. LS7 lifters have over .200 travel, ideally you want to be in the middle of the plunger travel or slightly less.

I wouldn't of used LS7 lifters to begin with. Morel 6504 or ultimately the Johnson 2110 for replacement drop-in lifters would of been my choice.

10-07-2019, 10:50 AM	#2
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,831	I doubt it's the roller rockers...they should actually be less noisy then a slider type OE rocker with a cam. Imho .050 isn't enough preload for a LS7 lifter. You should be between .070-.090. LS7 lifters have over .200 travel, ideally you want to be in the middle of the plunger travel or slightly less. I wouldn't of used LS7 lifters to begin with. Morel 6504 or ultimately the Johnson 2110 for replacement drop-in lifters would of been my choice. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA