Flywheel & Clutch Sizing

[L67ss]

The 11 bell housing is pretty rare. I am looking for one. Most of em are 153 tooth. Need a car starter and the flywheel above or similar.

For what its worth, I have a Saginaw that was born in my 78 GMC Caballero behind a stock 454. I added a 3.42 gear & posi. I don't lean on it very hard, no sticky tires, but its great fun to drive.

454 caballero?

 

[Bar50]

Pics or it didn't happen?



I was considering a trans swap when I had to modify the bell housing to work, as it was not a "G-body 464697" nothing a lttle heli-arc and a mill can't fix

 

[Bar50]

If you have an 11 inch bell housing, it can be modified for G-body clutch fork geometry

 

[Bar50]

I made a BOP one while I was at it...

 

[Bar50]

No where near as nice as your taxi. She was a non-air, bench seat, manual steering, V6, four speed. GMC Caballero. Sorry, I ditched the 14 inch Champ 500 wheels. It flip flops between Center-Line auto-drags and Chrome Vette Rally wheels.

 

[Bar50]

Sorry, I will quit, I just finally found pic with the Ralley wheels!

 

[ssn696]

My question is: Will a 168 tooth flywheel and 11" clutch fit in the stock bell housing?

The '606' will not physically fit an 11" clutch and 14" flywheel. The teeth rub. You need the 153-tooth flywheel and 10.5" clutch. That said, if you go with a 87-up 1-pc rear man seal (Vortec) 350, you are in luck - the F-body flywheel works perfectly, and uses the same clutch and pressure plate. Technically, it is listed as a 10.4" in F-body applications, but I've bolted both together inside a stock GM 606 bellhousing. Aftermarket stock flywheels are all Chinese lightweight models these days (saves money on shipping), unless you go with a GM part like pontiacgp showed in his post. 229, 305 and 350 all use the same 2-pc flywheel; 87-up 4.3, 5.0, and 5.7 also use the same 1-pc flywheel. 1-pc and 2-pc are not interchangeable - the cranks are different. The 2-pc is neutral/internal balance and the 1-pc is external balance.

Your 3-speed and a Saginaw four-speed both use a 10-spline input shaft and .590 pilot bushing/bearing. If you wish to find an aluminum-case Muncie 4-speed, my friend has a wide-ratio version he's not using and I can help him get it shipped to you. I think the Muncie uses a the 26-spline input shaft, but bolts up to the bellhousing in exactly the same pattern. The disc and pressure plates can be mixed to get the right spline count.

 

[Clarmo]

He's got another car that will pull the front wheels up so I don't think he intends to drive the four door that way. You're not wrong though. The Saginaw won't tolerate abuse at that power level.

I've been racing for 25 years. I get my fill of fast cars, I have the 80 Malibu, a 1100hp Dragster and I also crew on my best friends 3000hp Promod about 10 weekends a year.
My Taxi is really just a "grocery getter" I want a highway car cruiser with some good passing power. The 3 speed transmission gear ratios and the 2.73 rear gear will be perfect
I know the limitations of the 3 speed and am willing to deal with the consequences if I get too eager pulling up to a late model Mustang and want to play.
My original question was about the flywheel and clutch size and if it would fit in the bell-housing. After reading some of your suggestions, I'll use the 153 tooth flywheel from Hays and get the Ram 10.5" clutch.

Thanks

 

[Bar50]

Well, you can modify a non-G-body 697 bell housing to work.

Don't forget to grab a 153 tooth starter. I would run a high cone diaphragm clutch if possible. They have a light pedal and plenty of grip.

https://www.google.com/url?sa=i&rct...6nWHGIWpKfRR9wcLmRuQYLnQ&ust=1482425240058258

I have used Hayes and Centerforce. The Centerforce had weights on the springs to help under high RPM.

This is a low cone, they will stick down under higher RPMs

https://www.google.com/url?sa=i&rct...6nWHGIWpKfRR9wcLmRuQYLnQ&ust=1482425240058258