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Does your clutch engage smoothly - your experience with clutch disk types?

bondtimbond

Member
Joined
Nov 4, 2004
Messages
14
Location
Houston, Texas
Corvette
1967 SB Conv
I am looking for words of experience with clutch disks. Long story short I have been wrestling with clutch chatter problems on my 67 327 Vette, and I have pulled things apart now for the third time! Somewhat independent of that problem, I discovered that different clutch disks and different facing material on the disk can result in either smooth engagement or abrupt engagement. The photo attached shows the difference in an older GM disk (on the left) from around 1985 or so that I removed from my car, and a new LUK disk on the right. When I installed the new disk, I noticed that the engagement was much less smooth and downright grabby feeling. Even with some drive time it never did smooth out. When I pulled out my trans the second time last year (uugh!), I put back in the original disk shown on the left. The result was a much smoother engagement.

Now I have the clutch out again for the chatter problem, and I have purchased all new AC Delco clutch hardware. With new kit is actually a SACHS unit and disk with Valeo friction material. I have to decide which disk to put in...

Here is what I am looking for input on from this Forum: Are most people happy with the feel of your clutch after recent clutch hardware changes with disks that look like the one in the right of my photo shows?? I am trying to decide whether to put back in the original disk again (which has some life left but does show some wear), or put in the new SACHS disk that came with the kit. If the general feeling is that folks are happy with the newer clutch disks and have no problem with engagement, then I will put in the new disk.

Attached below is a photo of the two types of disks. The one on the right is a LUK disk, but my new Delco/Sachs disk looks similar. Any comments and experience would be greatly appreciated!!

Diskcomparison.jpg
 
Joined
Nov 11, 2001
Messages
5,979
Location
SouthCentral Ontario
Corvette
www.67HEAVEN.com
After years of legwork pumping an OEM L-88 clutch on the 427, I installed a new CenterForce DF148552 Dual Friction Clutch / Pressure Plate and CenterForce 700148 flywheel behind the new 502.

clutch-pressure-plate-500.jpg


flywheel-500.jpg


I couldn't be happier. The pedal effort is far less than before and it's very smooth and streetable.
 

midyearroadster427

Well-known member
Joined
Jul 25, 2004
Messages
190
Location
Massachusetts
Corvette
1967 Red 427 Roadster, 2012 Grand Sport Coupe
YEP

I put one in my car and it is a dream to drive ....lots of miles on and it works great..:):):):)
 

jims427400

Well-known member
Joined
Jun 7, 2005
Messages
763
Location
Temperance Michigan
Corvette
67 427 tripower,68 427 tripower,04 Z16, 62 340hp
Great question... wish you posted it about 2 weeks ago. I just ordered a replacement from Paragon. Hmmm do i return it and go w/ the center force or take a chance.
Just cureous.. how much is the centerforce ? I have 185.00 in mine
 

bossvette

Gone but not forgotten
Joined
May 19, 2003
Messages
3,233
Location
West Unity Ohio
Corvette
1968 1997
$269 from Summit at your house in a day
click here for 66-69 BB with 11 clutch there is also a 10.4 for $335 best call and talk to a sales rep as there are two pages for Corvettes ;LOL you will also want to replace the throwout bearing for about $35

worth the extra money especially for a city boy ;)
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,332
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
I've heard good things about the dual friction clutch too.
 

Kid_Again

Well-known member
Joined
Jul 6, 2004
Messages
1,171
Location
NJ - Which exit you from?
Corvette
65 SB Roadster, 66 BB Coupe
...i have them in both of my cars and think they're great
 

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