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

Parts interchange for harmonic balancer?

Thread Tools
 
Search this Thread
 
Old Jul 4, 2003 | 11:17 AM
  #1  
JB's Avatar
JB
Thread Starter
Melting Slicks
 
Joined: Oct 2000
Posts: 3,023
Likes: 2
From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Default Parts interchange for harmonic balancer?

Anyone know if the balancer on the '69 big block was used on other Chevy BBs? I've been looking at Chevelle & Camaro balancers on ebay--

JB
Reply
Old Jul 4, 2003 | 11:22 AM
  #2  
Jughead's Avatar
Jughead
Senior Member since 1492
Supporting Lifetime Gold
25 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Aug 2000
Posts: 87,932
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Default Re: Parts interchange for harmonic balancer? (JB)

When I bought a new one for the 454, there was no specification as to Chevy model or year. They had ad one listing Chevy BBI think it's 8 inches in diameter. I think I paid $59 from Competition Products.
Reply
Old Jul 4, 2003 | 12:08 PM
  #3  
mapman's Avatar
mapman
Melting Slicks
20 Year Member
Active Streak: 30 Days
All Eyes On Me
 
Joined: Aug 2001
Posts: 3,050
Likes: 124
From: Wichita KS
Default Re: Parts interchange for harmonic balancer? (JB)

PN 3879623 - 8" Torsional Damper is available from GM Performance Parts. I believe it was what originally came on 1967-69 427 engines.
Reply
Old Jul 4, 2003 | 12:59 PM
  #4  
JB's Avatar
JB
Thread Starter
Melting Slicks
 
Joined: Oct 2000
Posts: 3,023
Likes: 2
From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Default Re: Parts interchange for harmonic balancer? (mapman)

PN 3879623 - 8" Torsional Damper is available from GM Performance Parts. I believe it was what originally came on 1967-69 427 engines.
I wonder if it looks like the original part? The reason I'm looking at the Chevelle & Camaro balancers is I'd like a balancer that looked original, and maybe even was dated coded correctly. If a part has the word "corvette" attached to it on ebay, the bidding tends to go through the roof--Camaro and Chevelle parts seem to go a little more reasonably, and if a balancer from something like a SB Nova or something would fit and look right, I could probably get it for a song.

JB
Reply
Old Jul 4, 2003 | 02:31 PM
  #5  
mapman's Avatar
mapman
Melting Slicks
20 Year Member
Active Streak: 30 Days
All Eyes On Me
 
Joined: Aug 2001
Posts: 3,050
Likes: 124
From: Wichita KS
Default Re: Parts interchange for harmonic balancer? (JB)

PN 3879623 - 8" Torsional Damper is available from GM Performance Parts. I believe it was what originally came on 1967-69 427 engines.

I wonder if it looks like the original part? ....
The description in the 2003 GMPP catalog page 129, says "This 8" diameter torsional damper is designed for all internally balanced big block V8s. It was originally used on 1967-69 427 ci engines."

They also specify to use damper with crankshaft pn 3967811 and chromed timing pointer pn 12342001. I think the crankshaft in your 69 may be 3882849 (427 - Except Special High Performance HD Aluminum cyl and case)

In that case the damper would be pn 3860008 (1965-69 396,427 except Special high performance HD Aluminum cyl and case)

PN 3860008 is available new from your Chevy dealer as GM Restoration Parts.

Reply
Old Jul 4, 2003 | 06:26 PM
  #6  
Jughead's Avatar
Jughead
Senior Member since 1492
Supporting Lifetime Gold
25 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Aug 2000
Posts: 87,932
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Default Re: Parts interchange for harmonic balancer? (JB)

I check the '68-82 parts inter-change book and it looks like they list all '66-72, 396-427's Passenger & Hi-Po's and some 400's as using the same balancer. Starting in 1970 they list the 454's separate. Can't imagine what the difference is----Is the 427 internally balanced? The 454 Mark IV is externally balanced. :chevy


[Modified by 1970 Stingray, 6:28 PM 7/4/2003]
Reply

Get notified of new replies

To Parts interchange for harmonic balancer?





All times are GMT -4. The time now is 05:08 AM.

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