Originally Posted by 944-LT1

You mean the BH adapter. Well, we found that the C5 corvette BH will mate any chevy V8 from early carb'd to the current LS engines not including any Olds engines that chevy used. 12554980 is the GM part number for the BH you'd want. Then you need to have the engine mounts in and the engine resting on the mounts and supported in the rear so that you can make exact measurements from the end of the BH flange to the TT flange. Should be just about 9/16". With this measurement, you need to get an aluminum disc 9/16" thick machined to adapt the BH to the TT. TT has 4 bolt holes and the BH has something like 5. Then theres one larger hole through the center. This takes the most time but really just measuring things. If you have the TT and the BH mentioned above from GM, the bolt holes are easy to measure....in fact on our board somewhere are all the measurements for the TT. Should cost about 35 bucks to have the adapter machined. The other choice is to buy off the shelf. http://blackforesthybrids.com/store/...products_id=38

2. I do not have AC. I really never needed it I guess. But if I wanted it, yes, its very easy for me to do. Im also 609 certified! As well I hold a universal 608 cert. So its all good there.

3. By drilling out a new pivot point on the brake pedal, you get a better power ratio for the brakes. You dont have to do this up front but since the booster is gone, it helps. I did this soooo long ago I dont really remeber what I did. Either it was moving the hole in the pedal up 3/8" or down. No big deal.
The 993TT brakes I got were from Lindseyracing.com from Dave for about 2K...this was years ago so Im not sure what they cost now. 944T brakes should be fine for street use unless you are heavy on the foot or up the HP. I went with larger brakes because I didnt wanna say "im not sure if I coulda stopped earlier" hahaha.

4.The only BH that will work easily is a C5 housing or the one in the link above. Other than that, pretty much any BH will work but will require a little more work to get to fit. Its really not worth all the trouble to get early truck BH's to work. This is a very lengthy subject. But to cut to the chase, C5 or renegadehybrids, or the link above. The absolute easiest is the link above but 300 dollars more than the C5 plus adapter. But then again, the links BH is a guy we all know at porschehybrids.com and will probably cut deals for you easily. He metioned that if you buy a BH, he'll throw in clutch parts, etc. for discounted prices. If I had to do it again....I go with BFR (Cody is his name).
5. With either BH that you use, you will have to get an internal hydraulic slave/TO bearing. they are cheap as hell and readily available. If you have to, you can just go to AutoZone and say you have a 200x C5 corvette and need a slave and it should cost around 50 bucks or so. The disc is not chevy. Its a 1968 roadrunner (mopar) disc thats lowe end 15 bucks autozone or the skys the limit for high performance discs of the same car. Or you can buy one from the link above. The flywheel is 153 tooth using an LT engine and im not sure about LS...im an LT user. They are 10.5" for the LT atleast.
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Its no problem, but all these are answered on our board. More than you ever wanted to know about the conversion. Wiring, exhaust choices (better sounding vs price), ancillaries, etc.

My exhaust consists of RH 3/4 length headers 700 bucks (i know...ouch) to a Y-pipe and then 3" to the back single. Easy as I could hope for. Its all personal preference here with exhaust. You could run duals or just single or a large single to the rear to a one in two out muffler or two back to the muffler to a two in one out. 2.5" exhaust is the consensus for backpressure and availablilty of pipe. Youll have to weld in bungs for O2 sensors and then have 2 o2 sensors programmed out of the computer (LS and LT have 4 O2 sensors). UNLESS, you live in emissions areas in which case the exhaust is a PITA. I dont so im not to sure about anything in this case. But all emissions questions are as well very discussed on our board.