C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Clutch opinions $$ vs value please

Thread Tools
 
Search this Thread
 
Old May 21, 2007 | 04:55 PM
  #1  
sxr6's Avatar
sxr6
Thread Starter
Pro
10 Year Member
 
Joined: Nov 2004
Posts: 575
Likes: 0
From: Nice Lake Ontario
Default Clutch opinions $$ vs value please

Help me pick a clutch for my new combo.

454 approx 400-25hp..M21 with 3.36 gears
strickly a street driver 69 with 255x60 rears.

Here's my clutch options I've been milling over

Zoom zzz-30006 11" including the throwout & alignment tool $189.99
Zoom zzz-mf1675-1 10.4" w/bearing & tool.... $219.50
Hays..hay-85-114 11" w/bearing & tool ...$299.95
Centreforce ctf-dft35552 11" no bearing..no tool... $269.95

I here nothing but good about the Centerforce but is it really worth the extra $$ by the time you add the bearing?? or would either of these Zooms be completely satisfactory for my purpose
Reply
Old May 21, 2007 | 05:22 PM
  #2  
Merlinhaggard's Avatar
Merlinhaggard
Pro
 
Joined: Jan 2007
Posts: 589
Likes: 0
Default

Originally Posted by sxr6
Help me pick a clutch for my new combo.

454 approx 400-25hp..M21 with 3.36 gears
strickly a street driver 69 with 255x60 rears.

Here's my clutch options I've been milling over

Zoom zzz-30006 11" including the throwout & alignment tool $189.99
Zoom zzz-mf1675-1 10.4" w/bearing & tool.... $219.50
Hays..hay-85-114 11" w/bearing & tool ...$299.95
Centreforce ctf-dft35552 11" no bearing..no tool... $269.95

I here nothing but good about the Centerforce but is it really worth the extra $$ by the time you add the bearing?? or would either of these Zooms be completely satisfactory for my purpose
Im in the same boat. I have a Hays 11" and ordered a 10.5 because it was cheaper and found that I would have to replace flywheel. Sending it back. I just found out that NAPA has a reman complete kit for $179 and it looks allot like my Hays. Anyway Im keeping my pressure plate and just replacing the disk. Jegs/hays disk is $99 NAPA is 75..
Reply
Old May 22, 2007 | 09:46 AM
  #3  
sxr6's Avatar
sxr6
Thread Starter
Pro
10 Year Member
 
Joined: Nov 2004
Posts: 575
Likes: 0
From: Nice Lake Ontario
Default

Originally Posted by Merlinhaggard
Im in the same boat. I have a Hays 11" and ordered a 10.5 because it was cheaper and found that I would have to replace flywheel. Sending it back. I just found out that NAPA has a reman complete kit for $179 and it looks allot like my Hays. Anyway Im keeping my pressure plate and just replacing the disk. Jegs/hays disk is $99 NAPA is 75..
Well now I'm confused?
Why wouldn't the 10 1/2" clutch fit?
Reply
Old May 22, 2007 | 10:18 AM
  #4  
Gordonm's Avatar
Gordonm
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Default

I had a Zoom years ago that was a piece of crap. I vowed never again. I have had 3 different CF clutches in different cars and never killed any of them. I certainly tried. I now have a DF in my car and it holds everything I throw at it. A lot depends on how much HP you have and what kind of abuse you give it. A stock or mild build will not require a high performance clutch. As HP builds so does the pressure on the clutch.
Reply
Old May 22, 2007 | 02:07 PM
  #5  
Merlinhaggard's Avatar
Merlinhaggard
Pro
 
Joined: Jan 2007
Posts: 589
Likes: 0
Default

Originally Posted by sxr6
Well now I'm confused?
Why wouldn't the 10 1/2" clutch fit?
Im set up for an 11". My flywheel will only accept 11" and my starter is designed to turn that flywheel.

Im just learning here too. You need to go back with the same size you have so it will bolt up to your flywheel.

What do you have?. 10 or 11?

10 or 11" is the diameter of the disk.
Heres a pic


Here is the pressure plate



The 10 " pressure plate has a different bolt pattern than the 11" so they use different flywheels. The 10" r's flywheel has less teeth and from what Im told needs a different starter.
Reply
Old May 22, 2007 | 03:48 PM
  #6  
sxr6's Avatar
sxr6
Thread Starter
Pro
10 Year Member
 
Joined: Nov 2004
Posts: 575
Likes: 0
From: Nice Lake Ontario
Default

I thought all passenger 454s had 11"?
My motor is out of a 1 ton truck & had a 12" on the flywheel,
just ordered a 11" Centreforce, hope it's the correct one
Reply
Old May 22, 2007 | 04:24 PM
  #7  
GD70's Avatar
GD70
Le Mans Master
15 Year Member
 
Joined: Jan 2007
Posts: 5,485
Likes: 7
From: Peekskill NY
Default

How can you really tell short of pulling the tranny? I'm curious about mine as well and don't have a clue which size I have. I thought a 70 had an 11" but I'm not sure.
Reply
Old May 22, 2007 | 06:23 PM
  #8  
stingr69's Avatar
stingr69
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2004
Posts: 7,503
Likes: 1,511
From: Little Rock AR
Default

Most Vettes with 350's and big blocks will have an 11" clutch. Some exceptions and all 327's will have a 10.5" from the factory.

You do not want to try to install a 10.5" clutch if it is not already equipped - it will require a lot of parts swapping and it will cost you a lot of money and there is no real benefit. Do a search if you want the intimate details.

Advice: buy a LUK, Centerforce 2, or a Hays. You will be happy with any of these.

-Mark.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

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

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

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

 Michael S. Palmer
Old May 22, 2007 | 11:03 PM
  #9  
b71vette's Avatar
b71vette
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2004
Posts: 1,043
Likes: 4
From: Va
Default

Originally Posted by stingr69
Most Vettes with 350's and big blocks will have an 11" clutch. Some exceptions and all 327's will have a 10.5" from the factory.

You do not want to try to install a 10.5" clutch if it is not already equipped - it will require a lot of parts swapping and it will cost you a lot of money and there is no real benefit. Do a search if you want the intimate details.

Advice: buy a LUK, Centerforce 2, or a Hays. You will be happy with any of these.

-Mark.
or a Mcleod - pricey but excellent quality
Reply

Get notified of new replies

To Clutch opinions $$ vs value please





All times are GMT -4. The time now is 04:30 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