Size DOES matter...or does it??
Thread Starter
Instructor
Joined: Apr 2013
Posts: 156
Likes: 0
From: Reisterstown Maryland
Size DOES matter...or does it??
...so I'm getting ready to put in a slightly higher performance sbc engine in my stock 76 Stingray and I want to purchase a new flywheel and heavy duty clutch kit. My research, which has been limited to checking different suppliers (Summit, Napa etc), seems to indicate an 11" disc is the correct size. A buddy of mine who is very well versed in all things Corvettes (and is a member of this forum) is telling me that 76 used a 10.5" disc...
Can someone please put this question to rest for me?
Whist I'm at it, any recommendations for a clutch kit. The new motor is rated between 360 - 400hp.
Thanks!
Diesel
Can someone please put this question to rest for me?
Whist I'm at it, any recommendations for a clutch kit. The new motor is rated between 360 - 400hp.
Thanks!
Diesel
Race Director
Joined: May 2006
Posts: 18,736
Likes: 2,582
according to this site the factory disc was 11" but if you are replacing both parts you have to make sure they match and have the correct splines for the transmission input shaft.
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
Last edited by MelWff; Jun 6, 2016 at 02:21 PM.
Thread Starter
Instructor
Joined: Apr 2013
Posts: 156
Likes: 0
From: Reisterstown Maryland
Thanks for that info!
according to this site the factory disc was 11" but if you are replacing both parts you have to make sure they match and have the correct splines for the transmission input shaft.
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
https://www.gmheritagecenter.com/doc...t-Corvette.pdf
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
...so I'm getting ready to put in a slightly higher performance sbc engine in my stock 76 Stingray and I want to purchase a new flywheel and heavy duty clutch kit. My research, which has been limited to checking different suppliers (Summit, Napa etc), seems to indicate an 11" disc is the correct size. A buddy of mine who is very well versed in all things Corvettes (and is a member of this forum) is telling me that 76 used a 10.5" disc...
Can someone please put this question to rest for me?
Whist I'm at it, any recommendations for a clutch kit. The new motor is rated between 360 - 400hp.
Thanks!
Diesel
Can someone please put this question to rest for me?
Whist I'm at it, any recommendations for a clutch kit. The new motor is rated between 360 - 400hp.
Thanks!
Diesel
Thread Starter
Instructor
Joined: Apr 2013
Posts: 156
Likes: 0
From: Reisterstown Maryland
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Le Mans Master
Joined: Jul 2006
Posts: 8,117
Likes: 104
From: charlotte north carolina
If your engine has never been modified, it probably has the small bellhouse that is used with the 10.5" flywheel. GM used flywheels that met minimum requirements, and your SBC didn't produce enough torque to need the larger clutch. Other more knowledgeable members will chime in if I'm wrong.
