Bell housing / Block bolt hole patterm?

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turbodave
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Bell housing / Block bolt hole patterm?

Post by turbodave » Fri Jan 26, 2018 8:37 pm

I've found a few posts asking for this, and one that had an un-finished DXF of the dimensions, but has anyone verified the accuracy of the dimensions?

I'm tempted to use a bell housing off a ZF autobox (as it has an identifiable bore concentric to the centre-line of the crank), clock it in on my mill and the DRO to generate X-Y dims of the bellhousing bolt pattern as a reference. And of course, If I do this, I'll get it uploaded so everyone has the benefit of it.

Reason I'm asking this, is I am looking for a very cheap (read free) way of modifying a mustang T5 bell / trans to mate to the RV8.
I've got a bridgeport, large lathe, tig welder, etc - so why not... I know that I can buy a bell housing, but that's money that I'd rather keep in my pocket :mrgreen:



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Re: Bell housing / Block bolt hole patterm?

Post by turbodave » Fri Jan 26, 2018 8:39 pm

Hmmmmmm, I wonder about just using the ZF bell housing, and mating that to the T5, using a concentric slave cyl...

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ChrisJC
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Re: Bell housing / Block bolt hole patterm?

Post by ChrisJC » Fri Jan 26, 2018 10:06 pm

The ZF bellhousing is very long...

Chris.
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Re: Bell housing / Block bolt hole patterm?

Post by unstable load » Fri Jan 26, 2018 11:00 pm

Is this the right one?
BOPC bell pattern, begins in 1964 for Buick small blocks.
Image
https://www.teambuick.com/reference/ident_automatic.php

The Borg Warner 35 also has a round hole to mount the box.
Cheers,
John

turbodave
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Re: Bell housing / Block bolt hole patterm?

Post by turbodave » Sat Jan 27, 2018 1:42 am

Nope, that is the 64 on pattern.
The RV8 is the 61-63 Buick / olds / Pontiac (BOP) 215 cubic inch pattern - and the even rarer 198ci V6 pattern.
Just as well, because I can’t tell what the heck is going on with that drawing! Where are they referencing the dimensions from???

DaveEFI
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Re: Bell housing / Block bolt hole patterm?

Post by DaveEFI » Sat Jan 27, 2018 9:36 am

ChrisJC wrote:
Fri Jan 26, 2018 10:06 pm
The ZF bellhousing is very long...

Chris.
The TH 180 as fitted to the SD1 has a separate bell housing too - and much shorter.
Dave
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Re: Bell housing / Block bolt hole patterm?

Post by unstable load » Sun Jan 28, 2018 12:25 am

ChrisJC wrote:
Fri Jan 26, 2018 10:06 pm
The ZF bellhousing is very long...

Chris.
Stay away from the ZF for 4x4 application bellhousings, they are a lot longer.
Cheers,
John

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