Re: LS Engine and Muncie?
If you have a "621" bellhousing, don't need to buy another one.
Key issue is potential conversion to hydraulic clutch. I used Doug's adapter plates and headers. I mounted the plates such that they move the engine forward 3/4 inch. I also used the SDCP clutch ball pivot bracket.
I need to clearance the #7 header tube for the z-bar arm, but it all fits in nicely.
1969 Camaro - Intense Blue Pearlcoat/white (Baldwin-Motion paint scheme), stock 6.2 liter L92 with VVT, LS3 intake, Doug's Headers; Tremec TKO, 3.73 12-bolt posi.