Chevelle Tech - View Single Post - Bell housing number - DZ?
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post #3 of (permalink) Old Sep 17th, 07, 11:46 AM
Senior Tech Team
Join Date: Apr 2000
Location: florence Ky
Posts: 3,754
Re: Bell housing number - DZ?

I just got done reading that

the 421 housing is a ONE YEAR only (63) housing. It has a smaller center hole than the 62-earlier and 64-later housings. I have no clue, and I've never found anyone who can tell me, why Chevy did this on the 63 bell housings.
Yes, the 421 housing is rare, but NOT desireable. About the only value that it has is for an absolute perfect restoration. Of course, this means that a 63 only tranny, such as a 63 only Muncie, will mate with it also. And the 63 only Muncie is kind of an odd ball and some of the parts are nearly impossible to replace, such as first gear.

Happy motoring!
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