944Hybrids: 924/944/968 and 928 V8 Conversions
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HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Post  murrayg on Sun Oct 18, 2020 7:56 pm

Hi everyone,

I'm starting another LS1/6 into a 89 944. I'm collecting parts and everything is coming together except.... the C5 Corvette bellhousing - p/n12554980. This is the manual 2 piece bellhousing that I've used in the past, and works great. But they are getting very hard to find, and expensive. A QuickTime one at near $800 and 22lbs is not an option.
However, the automatic bellhousing (p/n12551118) is available and cheap! There are literally dozens on ebay for under $100.
Let's start a discussion and collect thoughts on using the auto bellhousing for a conversion. The release bearing mounts to the TT or in our case, the adaptor, so that shouldn't be a show stopper. I understand an 11" flywheel /clutch won't work, but a 10 1/2 will, what GM applications had 10.5" clutches?? I'm willing to put the work in here, if these auto bellhousings will work for us. Thoughts??

Gord.

murrayg

Posts : 93
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Post  sharkey on Sun Oct 18, 2020 11:41 pm

i spent a bit of time looking through rock auto and cant come up with a factory LS application that uses a 10.5" clutch. f-body, gto/g8 and corvette all use 11 7/16", ctsv uses 11.5", and trucks use a 12".

there are aftermarket performance 10.5" clutch combinations out there for the ls, however going this route will likely cost far more than the 2 piece bellhousing and using an oe pressure plate/flywheel.

sharkey

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low cost and available bellhousing...maybe Empty Re: low cost and available bellhousing...maybe

Post  Fairmont50 on Mon Oct 19, 2020 6:25 pm

I am also just starting on a conversion (1991 s2 > LQ4) and had the same questions, so thank you. It appears that there is a spacer required between the block and bellhousing in order to use an 11" clutch with the 1 piece bellhousing, but I can't find any reference as to the thickness (seem to remember seeing .500" but am not sure). This brings up another problem, which is that any spacer there will move the engine forward in the car and will add to the clearance problems between the throttle body and hood as well as change the engine mount location.

Is there anyone out there that has used the 1 piece bellhousing that can shed some light on the proper parts to use and how this will effect everything else?

Thanks,

Chris

Fairmont50

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Post  Admin on Tue Oct 20, 2020 2:16 pm

The 1 piece bell housing has been being used for some time.

TPC (i am the owner) has a complete kit.

To use the one piece you need:
* Modify the bell housing for the hydraulic lines
* use a 1/4" Spacer
* Extra long dowel pins (good idea)
* Use TPC's modified Adapter Plate

The 1 piece works and has been tested using the stock TPC Clutch Disc, GM flywheel and pressure plate,as well as SPEC kits.

Let me know if you have any more questions.

Admin
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http://www.TexasPerformanceConcepts.com

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