Transmission Critical

I just came across the latest issue of GMHTP this evening and brought it home.  I was reviewing this article and a couple of questions came to mind.  The problem I have is that my '98 Pontiac Formula M6 has a lot of miles.  The original LS1 is using a quart every 1000 miles.  Too much, in my opinion.  My T56 is crunchy.  That's about the best way to describe the shifting.  I have to take it easy.  No speed shifts.  Last year I made plans to replace my LS1 with an LS6.  I also have plans to replace the T56.  After reading this article it looks like I have to replace more parts on my LS6 engine to use it in my '98 Firebird.  I have the LS6 crate engine part no. 17801268.  I started to learn that a lot of the parts on the front of this engine are unusable for an F-body.  I hate to think I need to buy a flywheel/ clutch/ pressure plate also.  I like this car and I'm investing in it.  
Is the clutch on this particular crate engine unusable for an F-body?  I wanted to start working on my car last year, but death and illness in my immediate family meant this project had to be put on hold.  I'll have more questions for this project at a later time.  

Mr_Rich,

Many of the items that we had to replace on our LS6 were simply because we didn't have a stock LS1 in the car to begin with. When you remove the stock LS1 from your 98 you can swap the stock water pump, balancer and oil pan, all of which bolt directly to the new LS6. Unfortunately, you will have to switch the clutch/flywheel as the dual-mass CTS-V clutch is too long to work in the F-Body. You could always reuse your old clutch/flywheel, but I would recommend upgrading while you have everything apart.

Please let me know if you have any other questions, I would be happy to help.  

I double checked my engine yesterday (stored at another location from here) and I definitely have the CTS/V clutch just like the picture.  That must mean that the bellhousing for the CTS/V is deeper than an F-body.  It means I'll have to make up my mind what aftermarket clutch I want to install.  It doesn't dampen my enthusiasm any less.  I'm still looking forward to starting this project.  

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It's been a long time coming, and sometime life gets in the way.  I finally have my LS1 removed and I'm preparing the engine bay for my LS6 install.  I have to do some touch-up on the firewall and cross member.  The LS1 came out the top fairly easy.  I lifted the back end of the engine at the oil pan to clear the frame and lifted with the hoist from the front.  I reset the chains and lifted the engine straight out.  The flywheel and the balancer were previously removed.  There was about two inches or more of room left.  I didn't have to remove the hood or swing it back to vertical.  There was plenty of room.  It CAN be done.  

Sweet. We dropped the LSX motor into The Purp from the top as well with the trans attached and no balancer or accessories. I will seriously be considering cutting the core support and cowl for future ease though, something you can fortunately do on a racecar.