z28adiction

iTrader: (1)

I was told that XER lobes are too agressive for stock lifters to handle. I have not torn my engine apart yet but was wanting to reuse the stock lifters. So in this case i was going to get the same came i wanted ground through thunder racing bc i know they use cam motion lobes. How true is this?

quick346

iTrader: (4)

i ran xer lobes on ls7 lifter's with zero problem's

Paint_It_Black

iTrader: (1)

****, I'm running LSK lobes on stock lifters for over a year now..

lobes don't kill lifters, spring pressures kill lifters! Yeah they're almost hand in hand.. but still..

Daryn

iTrader: (19)

i thought thunder had thier cams grounded by comp???... futral uses camotion

matt94z

iTrader: (49)

I think the OP had them wrong.

moeZ28

iTrader: (7)

Thunder used to use cam motion, now they use comp...this is what I have heard. I know in my old car, the TREX V2 was shipped to thunder racing from comp, then to me...I pulled off the shipping label and the comp to thunder label was under it.

s346k

iTrader: (4)

XER lobes are fine on stock lifters. high rpm and spring pressure are what kill stock lifters regardless of lobe.

PREDATOR-Z

TR is Comp cam lobes in general, some proprietary as well, the rest XE-R/XFI, LSK etc...
If lifters are in good condition and setup is blueprinted properly, they can handle over .600 lifts with no issues.