swift700

iTrader: (3)

I'm using LS6 lifters in my build. I trust them.

budhayes3

iTrader: (19)

Not sure what year that there was a change, but I know that the earlier lifters (like my year at least) are not as strong, I believe that newer ones have more meat around the roller, and the LS7 lifter is the new factory replacement.

1slow01Z71

iTrader: (36)

Older style

Newer style


FYI all factory replacement lifters are the "LS7" lifters now. All the new motors I believe 07 and on that arent running the DOD, AFM, VVT crap are runing the LS7 lifters. They do just fine and there is no reason(IMO) to pay 200 for the comp replacements when the LS7s run 140 and do great even in fairly high revving, heavy valve'd, and stiff sprung combos. Texas Speed has them for 130ish I believe, put them on your shopping list unless youve got a set of the enclosed roller lifters that you know are in good shape.

dry_kill

iTrader: (12)

but could i still use a 7.40 pushrod on them?

also would i be fine using new stock head bolts or do i need to buy a set of ARP?

guero68

iTrader: (20)

I used 7.4 rods on my build using the LS7 lifters on XER lobes....havent had a problem...but maybe some might chime in on the length of rods...

JFOLM

iTrader: (8)

I've seen different answers on what length PR to use. Some say 7.4's and some say other sizes. I already bought PRs before I decided to get lifters so I am just going to check the length and if 7.4's do not work I will sell them for new ones.


I would go ahead and buy ARP head bolts if you are not going high boost or anything. I did some shopping the other day and I found ARP head bolts for around 99. I believe stock TTY bolts are 60 and you can only use them once, Arps can be used over and over. Just get the correct part # and google it and shop around. Don't forget different year blocks have different head bolts so buy the right ones the first time. I always see guys selling them because they bought the wrong length!

MPFD

iTrader: (5)

Could a steep ramp possibly touch the outside edge?

1slow01Z71

iTrader: (36)

No...