<VV> Depth of bellhousings

Joel McGregor joel at joelsplace.com
Fri Jun 22 00:09:30 EDT 2018

To install a PG engine on a manual transaxle you DO have to change the bellhousing.
I would guess PG and manual bellhousings are the same thickness but since the differential is PG or manual specific they wouldn't have to be.

Joel McGregor

-------- Original message --------
From: Bryan Blackwell via VirtualVairs <virtualvairs at corvair.org>
Date: 6/21/18 11:34 AM (GMT-06:00)
To: rod murray via VirtualVairs <virtualvairs at corvair.org>
Subject: Re: <VV> Depth of bellhousings

Consider also that a PG engine can be installed into a stick car without swapping the bellhousing, *and* you can install between early and late transaxles.  So, the crankcase to diff distance must have stayed the same.

Note that the bellhousings are different for short vs. long stroke engines.  So there are four distinct types.


> On Jun 21, 2018, at 12:09 PM, Jim Becker via VirtualVairs <virtualvairs at corvair.org> wrote:
> What does matter is the total distance from the rear motor mount to the center line of the differential.  That needs to remain the same.  Any difference in the bell housing would have to be made up by the differential housing.
> Jim Becker
> -----Original Message----- From: Robert Marlow, Vairtec Corporation via VirtualVairs
> Sent: Thursday, June 21, 2018 11:04 AM
> To: virtualvairs at corvair.org
> Subject: Re:  Depth of bellhousings
> I do not know a definitive answer and so I, like you, will wait for
> someone more knowledgeable to weigh in.  However,  manual and PG use
> different front supports, so any difference in the depth of the
> bellhousing would be accommodated by the different supports.
> --Bob
> On 6/21/2018 9:59 AM, Charles Sadek via VirtualVairs wrote:
>> Are the PG bell housings and the manual bellhousing the same depth (between
>> block and differential)? I believe they are. If there were differences,
>> there would be installation issues at front trans cross member.
>> Thanks
>> Chuck S

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