Ferocity02

iTrader: (60)

Will this combo work with stock cam, stock GM MLS gaskets, and no decking of the heads or block? I did search, but literally about half said to use stock 7.400" pushrods, and the other half said to use 7.350" pushrods, due to the 0.050" taller LS7 lifters.

I am going to be replacing the lifters in my '01 5.3L and swapping in an LS1 cam at the same time. I just want to make sure the preload will be okay and that the valvetrain won't be louder than stock.

Thanks!

01ssreda4

iTrader: (96)

LS7 lifters work with a stock pushrod length in a stock application. Thats what I would use. Or I would measure.

blackLS1m6

iTrader: (14)

Ls7 lifters are direct replacement lifters for ls1s, ls6s and ls2s I would measure but 7.400 should be the one you need.

01'SSLSX

scoggin dickey told me that stock PR's would work on ls7 lifters but were not recomended.

comp cam pushrod checker is $20, a wise investment