lownfast

iTrader: (4)

Can any one confirm these lifters as the LS7 replacement lifters?

And do they usually show up looking dirty? There are no signs of wear but the outer cases are discolored.

JS01

iTrader: (10)

Those are LS7 lifters, does look a little odd with the slightly rusted/oxidized color. Doesn't look like it was ever ran. Never seen one out of the box that looked like that.

Burken01

iTrader: (88)

where did you get those lifters from?

I recently got a set from a member and they looke a little beat up on the outer casings, but he said they were new!!

Ill post pics soo of them..

lownfast

iTrader: (4)

i got them from a member, SS99Z51. he said they were brand new and the boxes dont look like they have ever been opened. i will get all the lifters out and take pics, i only took two out so far.

i have a 70k LY6 engine, does any one know if it already has the updated lifters??

I dont really want to pull the heads if i dont have to.

Burken01

iTrader: (88)

Jimbo1367

Probably a different supplier

hirdlej

iTrader: (31)

Here's what I found in my oil pan when I used "discolored lifters". I shrugged them off like no big deal. I'm sure for an OEM application it wasn't. But with my high lift cam I found this in my oil:



Found this under my head:



Here's my discolored lifter:

litle88

iTrader: (20)

Those are not new lifters!

I have bought 2 sets before and they looked brand new. No casting flaws or anything.

Jim85IROC

iTrader: (6)

The set that I bought from my GM dealer all looked 100% brand new, with no nicks or discoloration.

lownfast

iTrader: (4)

I don't understand how there is no wear on the rollers or cups but still discolored... Could these be 2nd's that are sold as flawed parts?

Mike454SS

iTrader: (4)

Buy GM lifters from GM...not second hand.

The broken plungers posted by hirdlej almost look like way too much lash in the valve train...like too short a pushrod...but who really knows.

Mike454SS

iTrader: (4)

Buy GM lifters from GM...not second hand.

The broken plungers posted by hirdlej almost look like way too much lash in the valve train...like too short a pushrod...but who really knows.

Black LS1 T/A

New lifters:

Havoc40

Variable Duration Lifters, or VDL, are faster leakdown lifters. VDL's were designed for street cars for those suffering with low vacuum, and circle track applications with vacuum requirements. They make lots of noise until oil pressure rises to pump-up the lifter. You'll see a little more vacuum, and a little more torque/throttle response but stability suffers in the higher RPM's when compared to a standard leakdown lifter.

Black LS1 T/A

At higher RPM's, these lifters do not leak down. I have personally used Rhoads Lifters and they worked as advertised, from what I could see. And I have absolutely no problem with the ticking sound. My car has vacuum requirements.

DAVESS02

iTrader: (30)

I had wheel pitting with the Rhoads on a 228/230 XER cam with Comp 1.75 lifters. I talked to some guys from an oil company at SEMA and they thought low zinc in the oil could have contributed. I switched to Morels reboxed as Isky's and Torco TR-1 Racing Oil which has a high level of ZDDP. Still using the same rockers. Guess we'll see.

Jablowme

iTrader: (44)

well if i had to guess someone replaced the ls7 lifter with cheap ebay ones
i have had many sets of ls7 lifters and the workmanship looks really good, unlike these