Bell housing question

[old guys rule]

Is there a physical difference between Bell housings for a big block 10 and a half inch and an 11 inch fly wheel?

 

[R413]

Yes, depends on year:
The bottom cover is different for each size
the 66-67 B engine 10.5 iron has a small pilot hole
the 67 440 11” iron has a small pilot hole
The 68-69 383-440 11” Iron has a medium pilot hole
The 1970 10.5 aluminum has a medium pilot hole.

The Mid 70’s OD 4 speed has a large pilot hole
(for reference)

I don’t know if a 64-65 bell if it will fit a 66-70 b-body on the cluch pivot mount

 

[moparedtn]

All the big block bellhousings (there's a LOT of them, actually):
http://www.brewersperformance.com/products.php?cat=28

 

[R/T Boy 67]

The starter mount is also a bit further out on the 11", so it only works with the 143 tooth flywheel.

 

[old guys rule]

The starter mount is also a bit further out on the 11", so it only works with the 143 tooth flywheel.

maybe I have a 10 and 1/2 in Bell. I bought it from Keesler several years back. How can I identify between the two? I have the 143 tooth flywheel. Starter gear has 10 teeth.

 

[old guys rule]

The starter mount is also a bit further out on the 11", so it only works with the 143 tooth flywheel.

Maybe I have a 10 and 1/2 in Bell. The flywheel is 143 teeth and the starter gear has 10 teeth. What's the easiest way to tell the difference? I bought this bill from Keesler a few years back so it's not OEM.

 

[R413]

Call keisler since there are no factory numbers to identify it.


Or, does it have a pilot hole for the starter snout? Then measure from the centerline of the starter snout hole to the centerline of the hole for the trans. Then someone can measure a factory bellhousing and compare.

 

[old guys rule]

Call keisler since there are no factory numbers to identify it.
Thanks oh, I will measure it. Problem is Keesler is out of business.

Or, does it have a pilot hole for the starter snout? Then measure from the centerline of the starter snout hole to the centerline of the hole for the trans. Then someone can measure a factory bellhousing and compare.

 

[old guys rule]

Call keisler since there are no factory numbers to identify it.


Or, does it have a pilot hole for the starter snout? Then measure from the centerline of the starter snout hole to the centerline of the hole for the trans. Then someone can measure a factory bellhousing and compare.

thanks, I'll measure it. Keesler is out of business.

 

[Daves69]

No guarantees but I'm thinking this is a 10-1/2" bell drawing. I only say this as MP was pushing their 10-1/2" race clutch and a 10-1/2" flywheel is 13-1/4" diameter including the ring gear ............
bbbellhousing.jpg (1247×830) (mopar1.us)

 

[old guys rule]

No guarantees but I'm thinking this is a 10-1/2" bell drawing. I only say this as MP was pushing their 10-1/2" race clutch and a 10-1/2" flywheel is 13-1/4" diameter including the ring gear ............
bbbellhousing.jpg (1247×830) (mopar1.us)

Thanks. I'll keep you posted.

 

[moparmarks]

Pretty sure all of the old Keesler housings use a 130T wheel. The ones I've used did.