Bilster

iTrader: (21)

I bought a built 5.3 shortblock from a speed shop in Texas. The build sheet said it had LS7 lifters. I pulled them and compared them to a stock set of
5.3s and couldn't see any visable difference. Is the difference strictly internal?

Greekey

iTrader: (3)

The difference in ls7 lifters lies in the cup at the top of the lifter where your pushrod sits.

Bilster

iTrader: (21)

That makes me feel better. I expected more of a difference and was a little alarmed with what I found.

PREDATOR-Z

https://ls1tech.com/forums/generatio...ht=ls7+lifters

Bilster

iTrader: (21)

Thanks Predator. I didn't look at that particular dimension while comparing. The shop has a reputation for building good motors and doing honest business. I expected to see a real obvious difference.