Does the LS7 lifter differ internally from the 2000 lifter????.......................
Thread Starter
Le Mans Master
Joined: Sep 2003
Posts: 6,275
Likes: 226
From: Farmington CT
Cruise-In VII Veteran
Does the LS7 lifter differ internally from the 2000 lifter????.......................
I just removed the heads/cam from a 2000, the lifters are identical in appearance to the replacement LS lifters now used(the LS7 lifter commonly referred to)
Has anyone sliced one open to see if GM simply went back to the older 'caged' lifter of the 2000 cars?
All the 2002/2003 lifters I've seen recently are the 'uncaged' style
one actually failed and destroyed the cam(the motor would not fire on that cylinder, it was very evident something was wrong when the valvecover was pulled)
Has anyone sliced one open to see if GM simply went back to the older 'caged' lifter of the 2000 cars?
All the 2002/2003 lifters I've seen recently are the 'uncaged' style
one actually failed and destroyed the cam(the motor would not fire on that cylinder, it was very evident something was wrong when the valvecover was pulled)
Race Director
Joined: Mar 2008
Posts: 12,413
Likes: 502
From: Rio Rancho NM
Thread Starter
Le Mans Master
Joined: Sep 2003
Posts: 6,275
Likes: 226
From: Farmington CT
Cruise-In VII Veteran
"MEASUREMENTS", Shane does mention that key word, nothing can replace having an actual number to deal with
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
The LS7 lifter is the one now available, and it has superseded all the other LSx lifters. Call the dealer and ask him to look up the lifter for a 2000 Vette, and he'll come back saying the original lifter was superseded with the LS7 lifter.
If GM says it's a direct replacement then I'm betting they already determined it's going to work properly in older LSx engines. Slap 'em in ... shouldn't be an issue. What's the concern?
If GM says it's a direct replacement then I'm betting they already determined it's going to work properly in older LSx engines. Slap 'em in ... shouldn't be an issue. What's the concern?
Last edited by ZeeOSix; May 20, 2012 at 07:59 PM.
Thread Starter
Le Mans Master
Joined: Sep 2003
Posts: 6,275
Likes: 226
From: Farmington CT
Cruise-In VII Veteran
The LS7 lifter is the one now available, and it has superseded all the other LSx lifters. Call the dealer and ask him to look up the lifter for a 2000 Vette, and he'll come back saying the original lifter was superseded with the LS7 lifter.
If GM says it's a direct replacement then I'm betting they already determined it's going to work properly in older LSx engines. Slap 'em in ... shouldn't be an issue. What's the concern?
If GM says it's a direct replacement then I'm betting they already determined it's going to work properly in older LSx engines. Slap 'em in ... shouldn't be an issue. What's the concern?
internal changes, unless you have tech data or have taken one apart, it's all "read and re-post"
I've swapped dozens of heads/lifters in the past 10 years
LS7 as direct replacement was stated in the OP, nothing new
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
If you are concerned about the internal design being "weak", then guess the real question is ... how many reports of LS7 lifter failure has there been?
I had no luck finding photos of a disassembled LS7 lifter. Get one in your hands and open it up yourself I guess ... you could be the first on the internet to post up photos of a disassembled LS7 lifter.
I had no luck finding photos of a disassembled LS7 lifter. Get one in your hands and open it up yourself I guess ... you could be the first on the internet to post up photos of a disassembled LS7 lifter.
Last edited by ZeeOSix; May 20, 2012 at 08:49 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
