The Ford Barn

Walt Dupont--Me. · 07-29-2011, 12:19 PM

Pinewood, read my post again. The 8BA flywheel will not work correctly on a pre 49 block. If you must use a B-B pressure plate you'll have to redrill the 48 and earlier flywheel. Walt

Pinewood · 07-29-2011, 02:41 PM

Thanks Walt but we're having a mis-understanding. I'm trying to do the exact opposite of what you're saying. I want to go pre 49 flywheel on a 8BA/8CM block. Sounds like it doesn't work either direction...

rotorwrench · 07-30-2011, 11:24 AM

If you are using a later Chevy diaphragm type pressure plate, it will bolt up to a Borg & Beck type flywheel from a Mercury car in the 49 to 53 range. You can also have the flywheel drilled for the Borg & Beck 6-bolt even split patern. Center Force makes a pressure plate for flatheads with a diaphragm type pressure plate but they are pricy. A mid 70s Chevy Type can be made to work with the right diaphragm fingers but has to be compatible with the clutch disk size used. Clutch rebuilders can set them up any way a customer wants them.

The old flywheels will bolt up to the 8BA but the starter ring is in the wrong place and it won't work with the Ford or Mercury type starter plate locations. There is a good bell housing thread on this board to compare the different ones made to the later 8BA type blocks that shows the compatibility problems that can arise within the 8BA family of engines. The 59A and earlier ones are all basically the same with the pan mounted starter. The oil pan formed the lower portion of the bellhousing on all the earlier engines.

Kerby

Walt Dupont--Me. · 07-31-2011, 07:33 AM

Quote:

Originally Posted by Pinewood

Thanks Walt but we're having a mis-understanding. I'm trying to do the exact opposite of what you're saying. I want to go pre 49 flywheel on a 8BA/8CM block. Sounds like it doesn't work either direction...

Your right Pinewood, that won't work either. Walt

white64 · 05-14-2012, 12:35 PM

46 flywheel on an 8ba...? found this... does it sound plausible?

I used the flywheel from my 47 on a 51 Merc.
On the side next to the motor were some ridges, they will lock the flywheel to the motor. I had them removed. I made the flywheel flat. I also put a ring , the thing that goes on before the bolts, on before the flywheel. That way I could use the flywheel,clutch,and pressure plate from the 47. I also used the starter from the 47. This way I could use what I had. I do not know which bellhousing I used, the one I had worked.
It might have been from a truck because the old man I got it from had several trucks."

07-29-2011, 12:19 PM	#21
Walt Dupont--Me. Senior Member Join Date: May 2010 Location: Gardiner Me. Posts: 4,200	Re: Flywheels Pinewood, read my post again. The 8BA flywheel will not work correctly on a pre 49 block. If you must use a B-B pressure plate you'll have to redrill the 48 and earlier flywheel. Walt

07-29-2011, 02:41 PM	#22
Pinewood Member Join Date: Nov 2010 Location: Minneapolis, MN Posts: 42	Re: Flywheels Thanks Walt but we're having a mis-understanding. I'm trying to do the exact opposite of what you're saying. I want to go pre 49 flywheel on a 8BA/8CM block. Sounds like it doesn't work either direction...

07-30-2011, 11:24 AM	#23
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,431	Re: Flywheels If you are using a later Chevy diaphragm type pressure plate, it will bolt up to a Borg & Beck type flywheel from a Mercury car in the 49 to 53 range. You can also have the flywheel drilled for the Borg & Beck 6-bolt even split patern. Center Force makes a pressure plate for flatheads with a diaphragm type pressure plate but they are pricy. A mid 70s Chevy Type can be made to work with the right diaphragm fingers but has to be compatible with the clutch disk size used. Clutch rebuilders can set them up any way a customer wants them. The old flywheels will bolt up to the 8BA but the starter ring is in the wrong place and it won't work with the Ford or Mercury type starter plate locations. There is a good bell housing thread on this board to compare the different ones made to the later 8BA type blocks that shows the compatibility problems that can arise within the 8BA family of engines. The 59A and earlier ones are all basically the same with the pan mounted starter. The oil pan formed the lower portion of the bellhousing on all the earlier engines. Kerby

05-14-2012, 12:35 PM	#25
white64 Senior Member Join Date: Nov 2011 Location: Pittston , MAine Posts: 222	Re: Flywheels 46 flywheel on an 8ba...? found this... does it sound plausible? I used the flywheel from my 47 on a 51 Merc. On the side next to the motor were some ridges, they will lock the flywheel to the motor. I had them removed. I made the flywheel flat. I also put a ring , the thing that goes on before the bolts, on before the flywheel. That way I could use the flywheel,clutch,and pressure plate from the 47. I also used the starter from the 47. This way I could use what I had. I do not know which bellhousing I used, the one I had worked. It might have been from a truck because the old man I got it from had several trucks."