CorvetteForum - Chevrolet Corvette Forum Discussion

C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

Trying to identify balancer

Thread Tools
 
Search this Thread
 
Old Sep 30, 2025 | 08:40 PM
Share
  #1  
lucky131969's Avatar
lucky131969
Thread Starter
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
Default Trying to identify balancer
Removed from my L76. No GM number.

Thoughts?




Reply
0
Old Sep 30, 2025 | 09:04 PM
Share
  #2  
66jack's Avatar
66jack
Team Owner
 
Joined: May 2006
Posts: 37,671
Likes: 1,115
From: CA
Default
Whats stamped/cast into the backside...i cannot make them out
Reply
0
Old Sep 30, 2025 | 09:17 PM
Share
  #3  
lucky131969's Avatar
lucky131969
Thread Starter
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
Default
Originally Posted by 66jack
Whats stamped/cast into the backside...i cannot make them out



Reply
0
Old Sep 30, 2025 | 11:43 PM
Share
  #4  
lucky131969's Avatar
lucky131969
Thread Starter
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
Default
Think i figured it out. Looks like I have an aftermarket balancer for a 69 and later 350. Hub casting should be 3942538. If I'm reading correctly, the timing mark is also different than a stock L76.
Reply
0
Old Oct 1, 2025 | 09:15 AM
Share
  #5  
BAmacker's Avatar
BAmacker
Pro
25 Year Member
Conversation Starter
All Eyes On Me
Top Answer: 1
 
Joined: Feb 1999
Posts: 690
Likes: 118
From: Strongsville, Ohio
Default
Use a piston stop tool in the #1 spark plug hole to ID exact TDC using your balancer. I also had a later balancer and my scratch line was off by about 10 degrees on the balancer!
Reply
0
Old Oct 1, 2025 | 09:51 AM
Share
  #6  
leif.anderson93's Avatar
leif.anderson93
Le Mans Master
10 Year Member
Veteran: Air Force
Community Builder
Top Answer: 5
 
Joined: Feb 2014
Posts: 8,957
Likes: 5,509
From: Richardson Texas
Default
This is what a correct harmonic balancer for your application should look like...

https://www.topflightautomotive.com/...orrect-finned/
image
Reply
0
Old Oct 1, 2025 | 10:59 AM
Share
  #7  
lucky131969's Avatar
lucky131969
Thread Starter
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
Default
Originally Posted by BAmacker
Use a piston stop tool in the #1 spark plug hole to ID exact TDC using your balancer. I also had a later balancer and my scratch line was off by about 10 degrees on the balancer!
Great suggestion. Motor is tore down...for good. I was just curious what I had.
Reply
0

Get notified of new replies

To Trying to identify balancer

Back to Subforum
C1 & C2 Corvettes
View Next Unread
+*+*+*friday funnies+*+*+*




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

All times are GMT -4. The time now is 05:32 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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