C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Spec Stage 3+ clutch

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Old Oct 15, 2009 | 09:07 AM
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Default Spec Stage 3+ clutch

OK here is the deal. A few years ago I had the Spec steel flywheel and Stage 3 clutch and PP. It held very good but chattered every time you started out. So when I re-did the motor in 07, I used a McLeod dual friction disk because I ran that clutch before (when my motor was milder) with good success. Well I found out its not the clutch for this set up and its toast.

So I called Spec and he is recommending the Spec Stage 3+ clutch and said it is smoother than the regular Stage 3.

Looking for anyone with experience with this clutch. I know McLeod makes a twin clutch but it seems overkill for a motor making probably 500hp
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Old Oct 15, 2009 | 10:28 AM
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Originally Posted by 89vette
OK here is the deal. A few years ago I had the Spec steel flywheel and Stage 3 clutch and PP. It held very good but chattered every time you started out. So when I re-did the motor in 07, I used a McLeod dual friction disk because I ran that clutch before (when my motor was milder) with good success. Well I found out its not the clutch for this set up and its toast.

So I called Spec and he is recommending the Spec Stage 3+ clutch and said it is smoother than the regular Stage 3.

Looking for anyone with experience with this clutch. I know McLeod makes a twin clutch but it seems overkill for a motor making probably 500hp
The Spec 3+ clutch with LT1 Camaro steel flywheel have been in my 396 LT1 for the past two years. No chatter/grabs hard. Best clutch in 10 years of bracket racing. This is a popular clutch with the Fbody crowd of racers.

Went through alot of Mcleod dual friction clutches before the Spec 3+.
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Old Oct 15, 2009 | 11:13 AM
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Thank you for the reply. This is what I was looking for.
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Old Oct 15, 2009 | 04:12 PM
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Haven't used one for the Corvette, but used to work for a shop that was a vendor for them, and we used the 3+ on other cars, and it worked nicely on turbo cars without annoying chatter.
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