How to tell when Lifters need replacing????
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
How to tell when Lifters need replacing????
I'm planning on doing a cam swap before I pull the car out of storage this spring. I don't have alot of miles on my current lifters, but I was wondering how to know if they need replacing.
I'd rather do them now if they need it so how do I test them?
Thanks
I'd rather do them now if they need it so how do I test them?
Thanks
!["swamp rat"'s Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%2391a5cf' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>"</text></svg>)
Instructor
Joined: Jan 2009
Posts: 151
Likes: 0
Safety Car
Joined: Jul 1999
Posts: 3,946
Likes: 63
From: Marianna FL
Check the rollers for pitting or any other visible damage. If you're using a cam with a lot more lift than stock or that will require much higher valve spring pressure, a new set of lifters would be cheap compared to having to go back and change them later.
Instructor
Joined: Jan 2009
Posts: 151
Likes: 0
Instructor
Joined: Jan 2009
Posts: 151
Likes: 0
NO ! but the lifters will get a wear pattern to em ! rollers or not so the price of new lifters is nada !! I bought a new cam & lifters for like 150 & yeah I am goin to go with a flat tappet cam ! In fact It's settin in my living room right now waitin on some new rockers !!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
What he said. Rollers can be reused if undamaged, flat tappet lifters should never,never be reused with a new cam.
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
Well, its over $200 for a set of roller lifters from summit. cca-850-16
I'd really like to replace them if they are not good.
I'll definately check the rollers, what about the hydraulic part? Is there a way to make sure that it "holds" like it should??
I'd really like to replace them if they are not good.
I'll definately check the rollers, what about the hydraulic part? Is there a way to make sure that it "holds" like it should??
Instructor
Joined: Jan 2009
Posts: 151
Likes: 0
I bought the flat tappet cam & lifters from jegs for 150 with lifters hyd. 515 lift comp cam.
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
If it were me, I would replace the lifters. No, it is not neccessary with rollers, but the LS7 lifters are really good. Although, given choices, if your lifters are still good, you might want to think about the opti and timing gears. If you're going with a more aggressive cam, you'll be happier with the LT4 timing set up. And I think the opti goes with out saying, now would be a good time to upgrade to the vented opti.
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 3,293
Likes: 79
From: Jackson MI
If it were me, I would replace the lifters. No, it is not neccessary with rollers, but the LS7 lifters are really good. Although, given choices, if your lifters are still good, you might want to think about the opti and timing gears. If you're going with a more aggressive cam, you'll be happier with the LT4 timing set up. And I think the opti goes with out saying, now would be a good time to upgrade to the vented opti.
I'm actually going with a LESS agressive cam. I'm tired of the rough idle. And there is no Opti. I got rid of that thing long ago and run a rear mount distributor with a cam/crank sensor in it.
Are LS7 lifters a strait drop in? For $125 I think I would probably just change them out. Where can I find more info on these?
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
I'm actually going with a LESS agressive cam. I'm tired of the rough idle. And there is no Opti. I got rid of that thing long ago and run a rear mount distributor with a cam/crank sensor in it.
Are LS7 lifters a strait drop in? For $125 I think I would probably just change them out. Where can I find more info on these?
Are LS7 lifters a strait drop in? For $125 I think I would probably just change them out. Where can I find more info on these?