CorvetteForum - Chevrolet Corvette Forum Discussion

C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Lifter noise

Thread Tools
 
Search this Thread
 
Old Jun 14, 2020 | 10:12 AM
Share
  #1  
Mikes_mess's Avatar
Mikes_mess
Thread Starter
4th Gear
 
Joined: Jun 2020
Posts: 4
Likes: 0
Default Lifter noise
My first Ls7 Iv rebuilt, and love it. the ls7 lifters were in short supply about 4 months ago, so I went with some “Engine Pro” brand from EPW. It’s quiet at idle but around 22-2500 rpm it’s a little noisy. I don’t know if this is a ls7 thing or if I should go up a little on oil thickness. I’m running 5/30 M1 now. When the engine is cold it’s quiet. Thanks for advice!
Reply
0
Old Jun 14, 2020 | 10:52 AM
Share
  #2  
grpweld's Avatar
grpweld
Pro
Photogenic
Liked
Loved
Community Favorite
 
Joined: Feb 2017
Posts: 611
Likes: 79
From: Fallbrook SanDiego county
Default
Are you sure it's not the injectors you are hearing?
Tell us a bit about your rebuild! heads, cam? if so how much pre-load on the lifters?
Last edited by grpweld; Jun 14, 2020 at 10:54 AM.
Reply
0
Old Jun 14, 2020 | 11:05 AM
Share
  #3  
Mikes_mess's Avatar
Mikes_mess
Thread Starter
4th Gear
 
Joined: Jun 2020
Posts: 4
Likes: 0
Default
Originally Posted by grpweld
Are you sure it's not the injectors you are hearing?
Tell us a bit about your rebuild! heads, cam? if so how much pre-load on the lifters?
it’s 100% stock rebuild. I used all GM parts, and had my cylinder head guy put in new GM valve guides. My preload was .060
Reply
0
Old Jun 14, 2020 | 11:25 AM
Share
  #4  
grpweld's Avatar
grpweld
Pro
Photogenic
Liked
Loved
Community Favorite
 
Joined: Feb 2017
Posts: 611
Likes: 79
From: Fallbrook SanDiego county
Default
After market lifters could be different height causing a need for longer or shorter pushrods! Did you check lifter plunger travel?
Reply
0
Old Jun 15, 2020 | 08:23 PM
Share
  #5  
NY09C6's Avatar
NY09C6
Le Mans Master
20 Year Member
 
Joined: Sep 1999
Posts: 9,813
Likes: 628
From: Texas
Default
Most LS engines have a noisy rpm range. Mine is most noticeable in the 1800-2200 range. Totally stock car. it does reduce running a heavier oil
Last edited by NY09C6; Jun 15, 2020 at 08:24 PM.
Reply
1
Old Jun 15, 2020 | 10:26 PM
Share
  #6  
Mikes_mess's Avatar
Mikes_mess
Thread Starter
4th Gear
 
Joined: Jun 2020
Posts: 4
Likes: 0
Default
Originally Posted by NY09C6
Most LS engines have a noisy rpm range. Mine is most noticeable in the 1800-2200 range. Totally stock car. it does reduce running a heavier oil
I will try it. Not bad just annoying I can’t figure out what it is. Thank you for the reply. Btw, That’s the same range mine is.
Reply
0

Get notified of new replies

To Lifter noise

Back to Subforum
C6 Tech/Performance
View Next Unread
C6 OBD not reading for emissions




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 01:57 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE