Help me with clutch size? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MandarinSixSeven · 02-18-2005, 11:13 PM

So, I'm about to be installing a new clutch hopefully this week. I'm going to go with the centerforce, dual friction. However, I was wondering if anyone knows what size I should order...my options are 12" or 11".

I know my engine is a car 350 and I know the tranny is a car 4-speed. What size do you think it takes? I'm guessing that it would be an 11" and the 12" are for truck engines???
Anyone know what size I should be getting?

68w/sbc406 · 02-18-2005, 11:18 PM

an 11 inch will fit on a 12 inch flywheel, but not vise versa i think the one i put in my truck back in the day was an 11 inch

MandarinSixSeven · 02-18-2005, 11:51 PM

so is it basically the size does not have to be exact, as long as it is not bigger than the fly wheel? And the bigger the clutch the more the friction?

68w/sbc406 · 02-18-2005, 11:57 PM

IIRC, correct

MandarinSixSeven · 02-18-2005, 11:59 PM

Awesome...thanks for the input

69 longhorn · 02-19-2005, 12:25 AM

A 14" dia flywheel will accept either an 11 or 12 " clutch. with a stocker , for heavy hauling, i would go 12"......hyperformance, 11" is the ticket. centerforce clutches are a little pricey, but you get what you pay for

i love the centerforce dual friction setup my longhorn is running......69L

02-18-2005, 11:13 PM	#1
MandarinSixSeven Seasonal Poster Join Date: Apr 2002 Location: Kelowna BC Canada Posts: 896	Help me with clutch size? So, I'm about to be installing a new clutch hopefully this week. I'm going to go with the centerforce, dual friction. However, I was wondering if anyone knows what size I should order...my options are 12" or 11". I know my engine is a car 350 and I know the tranny is a car 4-speed. What size do you think it takes? I'm guessing that it would be an 11" and the 12" are for truck engines??? Anyone know what size I should be getting? __________________ 67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW

02-18-2005, 11:18 PM	#2
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	an 11 inch will fit on a 12 inch flywheel, but not vise versa i think the one i put in my truck back in the day was an 11 inch __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

02-18-2005, 11:51 PM	#3
MandarinSixSeven Seasonal Poster Join Date: Apr 2002 Location: Kelowna BC Canada Posts: 896	so is it basically the size does not have to be exact, as long as it is not bigger than the fly wheel? And the bigger the clutch the more the friction? __________________ 67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW

02-18-2005, 11:57 PM	#4
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	IIRC, correct __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

02-18-2005, 11:59 PM	#5
MandarinSixSeven Seasonal Poster Join Date: Apr 2002 Location: Kelowna BC Canada Posts: 896	Awesome...thanks for the input __________________ 67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW

02-19-2005, 12:25 AM	#6
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	A 14" dia flywheel will accept either an 11 or 12 " clutch. with a stocker , for heavy hauling, i would go 12"......hyperformance, 11" is the ticket. centerforce clutches are a little pricey, but you get what you pay for i love the centerforce dual friction setup my longhorn is running......69L



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.