C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

6.75" or 8" harmonic balancer

Thread Tools
 
Search this Thread
 
Old May 19, 2011 | 11:17 AM
  #1  
boltnut's Avatar
boltnut
Thread Starter
Drifting
 
Joined: Mar 2011
Posts: 1,271
Likes: 1
From: PA
Default 6.75" or 8" harmonic balancer

looking at summit they have two OD listed. what are the differences ?

http://www.summitracing.com/parts/SUM-161350/

http://www.summitracing.com/parts/SUM-161358/

they look the same to me ?
Reply
Old May 19, 2011 | 11:57 AM
  #2  
7t9l82's Avatar
7t9l82
Le Mans Master
15 Year Member
Conversation Starter
Photogenic
Community Favorite
 
Joined: Oct 2010
Posts: 6,934
Likes: 846
From: melbourne florida
2023 C3 of the Year Finalist - Modified
Default

what size is the original. balanced?
Reply
Old May 19, 2011 | 11:59 AM
  #3  
boltnut's Avatar
boltnut
Thread Starter
Drifting
 
Joined: Mar 2011
Posts: 1,271
Likes: 1
From: PA
Default

ok....the 8" ones are for chevy 350 trucks. corvettes came with 6.75"
Reply
Old May 19, 2011 | 12:09 PM
  #4  
7t9l82's Avatar
7t9l82
Le Mans Master
15 Year Member
Conversation Starter
Photogenic
Community Favorite
 
Joined: Oct 2010
Posts: 6,934
Likes: 846
From: melbourne florida
2023 C3 of the Year Finalist - Modified
Default

not true! the lt-1 and l-82 had the big balancer
Reply
Old May 19, 2011 | 12:11 PM
  #5  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,710
Likes: 2,574
Default

so did the L-46 350/350
Reply
Old May 19, 2011 | 12:13 PM
  #6  
boltnut's Avatar
boltnut
Thread Starter
Drifting
 
Joined: Mar 2011
Posts: 1,271
Likes: 1
From: PA
Default

Oops. The guy at summit told me that info....sorry
Reply
Old May 19, 2011 | 12:14 PM
  #7  
MelWff's Avatar
MelWff
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 18,710
Likes: 2,574
Default

so if you have an L-82 you need 8" otherwise the 6.75"
Reply
Old May 20, 2011 | 09:46 AM
  #8  
jackson's Avatar
jackson
Le Mans Master
 
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Default

what Really matters is which timing tab indicator You have on Your motor.
It should lay very close to damper's outer edge.
If so, measure Your damper diameter & replace w/ same size.

and complete your profile to include an approximate geographic location.
Reply

Get notified of new replies

To 6.75" or 8" harmonic balancer

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-4

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-5

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-6

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-7

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-8

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote




All times are GMT -4. The time now is 06:40 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE