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:

Valve lube for head assembly

Thread Tools
 
Search this Thread
 
Old Dec 18, 2024 | 07:42 PM
  #1  
bwill03z's Avatar
bwill03z
Thread Starter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2011
Posts: 3,187
Likes: 266
From: Virginia
Default Valve lube for head assembly

I’m not the one building my motor but I did buy some new valves for my new set of heads that I’m going to install myself. My question is what should I lube the valves with before putting them in, just some motor oil or a particular assembly lube?
Reply
Old Dec 18, 2024 | 07:46 PM
  #2  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,625
Likes: 4,069
From: Cape Coral, Florida
Default

Engine oil or assembly lube but if it were my engine assembly lube.
Reply
Old Dec 18, 2024 | 09:18 PM
  #3  
bwill03z's Avatar
bwill03z
Thread Starter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2011
Posts: 3,187
Likes: 266
From: Virginia
Default

Originally Posted by C5 Diag
Engine oil or assembly lube but if it were my engine assembly lube.
which lube? I don’t want to put something on there that’s eventually going to turn to paste and cause a valve to stick
Reply
Old Dec 18, 2024 | 09:25 PM
  #4  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,625
Likes: 4,069
From: Cape Coral, Florida
Default

Lubriplate 105 is good…if you don’t feel comfortable using an assembly lube just use engine oil…you’ll get 100 answers with this question like which battery should I buy.
Reply
Old Dec 18, 2024 | 09:32 PM
  #5  
bwill03z's Avatar
bwill03z
Thread Starter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2011
Posts: 3,187
Likes: 266
From: Virginia
Default

Originally Posted by C5 Diag
Lubriplate 105 is good…if you don’t feel comfortable using an assembly lube just use engine oil…you’ll get 100 answers with this question like which battery should I buy.
Gotcha. Thanks for the info
Reply
Old Dec 19, 2024 | 11:53 AM
  #6  
Nowanker's Avatar
Nowanker
Safety Car
10 Year Member
Pro Mechanic
Liked
Community Favorite
 
Joined: Nov 2013
Posts: 3,572
Likes: 1,106
From: Ex DPRK, now just N of Medford, OR
Default

From my engine machining class about a zillion years ago:
It'll be awhile before the engine oil reaches there on first startup.
You want to use something with good extreme pressure qualities between the stems and guides.
GL5 90 weight was recommended.
An exhaust valve that had welded itself to the guide was passed around as an example of inadequate first-start lubrication.
Reply
Old Dec 19, 2024 | 05:27 PM
  #7  
bwill03z's Avatar
bwill03z
Thread Starter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2011
Posts: 3,187
Likes: 266
From: Virginia
Default

Originally Posted by Nowanker
From my engine machining class about a zillion years ago:
It'll be awhile before the engine oil reaches there on first startup.
You want to use something with good extreme pressure qualities between the stems and guides.
GL5 90 weight was recommended.
An exhaust valve that had welded itself to the guide was passed around as an example of inadequate first-start lubrication.
Interesting….. this is a brand new set of heads and I’m sure no lube of any kind has been used on them, unless maybe they prelubed the valves before installing them in the head. I’ll be taking these heads and dropping them off with the car when I take it to the shop so it will be a good while before they are put on. I might just hold off and let the builder do all the lubing before putting them on.
Reply

Get notified of new replies

To Valve lube for head assembly





All times are GMT -4. The time now is 03:52 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