Help!! Difference in 4 speed Bells - The 1947 - Present Chevrolet & GMC Truck Message Board Network

harlyworkr · 02-27-2006, 06:54 PM

Is there a difference in a 292 6cyl 4 speed bell and a 350 V8 4 speed bell for a 2wd truck? I have the flywheel hitting the bell when I converted to a 91 LT1 350 crate motor for my 69 C10. Any help will be appreciated.

JAKES 68GMC · 02-27-2006, 09:22 PM

Doesn't seem like there would be, but I'm no expert on this truck stuff.

NitroMike · 02-27-2006, 10:26 PM

Not sure. You probably had a 168 tooth flywheel on your 292, but the later set-up used a 153 tooth (smaller diameter) flywheel. Try to use the flywheel that would have come with the later motor and trans.

Tx Firefighter · 02-27-2006, 11:04 PM

You need to assure that the tooth count of the 292 flywheel was the same as your new 350 flywheel is, either 153 or 168.

Coincidentally, I just swapped this same swap, twice, in the last two weeks in my own truck, 292 to 350, then back to 292. Same bellhousing for all of them.

I then took the 4 speed out and went automatic trans. It was a busy week.

rwgregory · 02-28-2006, 04:50 AM

Tx Firefighter, just out of curiosity do you use standard nuts and bolts or just
hold everything together with wingnuts seeing as how it only has to hold for a
day or two.....

02-27-2006, 06:54 PM	#1
harlyworkr Registered User Join Date: Sep 2005 Location: Kansas City Kansas Posts: 212	Help!! Difference in 4 speed Bells Is there a difference in a 292 6cyl 4 speed bell and a 350 V8 4 speed bell for a 2wd truck? I have the flywheel hitting the bell when I converted to a 91 LT1 350 crate motor for my 69 C10. Any help will be appreciated.

02-27-2006, 09:22 PM	#2
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,211	Re: Help!! Difference in 4 speed Bells Doesn't seem like there would be, but I'm no expert on this truck stuff.

02-27-2006, 10:26 PM	#3
NitroMike Active Member Join Date: Dec 2005 Location: Bethlehem, PA Posts: 346	Re: Help!! Difference in 4 speed Bells Not sure. You probably had a 168 tooth flywheel on your 292, but the later set-up used a 153 tooth (smaller diameter) flywheel. Try to use the flywheel that would have come with the later motor and trans. __________________ The older I get, the faster I was!!

02-27-2006, 11:04 PM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Help!! Difference in 4 speed Bells You need to assure that the tooth count of the 292 flywheel was the same as your new 350 flywheel is, either 153 or 168. Coincidentally, I just swapped this same swap, twice, in the last two weeks in my own truck, 292 to 350, then back to 292. Same bellhousing for all of them. I then took the 4 speed out and went automatic trans. It was a busy week. __________________ I'm on the Instagram- @Gearhead_Kevin Last edited by Tx Firefighter; 02-27-2006 at 11:04 PM.

02-28-2006, 04:50 AM	#5
rwgregory Registered User Join Date: Apr 2005 Location: Chula Vista, California Posts: 495	Re: Help!! Difference in 4 speed Bells Tx Firefighter, just out of curiosity do you use standard nuts and bolts or just hold everything together with wingnuts seeing as how it only has to hold for a day or two..... __________________ rwgregory 67 GMC 2500 ,2w/d wide box 305 V-6, 4-speed

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