[68GMCCustom]

new LSx motors can use the newer transmissions, or with an adapter use a non-computer controlled 200-4r, 700-4r, T-56, or whatever. I'm going with an MSD system to fire the plugs and a carb for air/fuel and non-computer controlled 200-4r, and you can also use aftermarket efi systems, or as most do... "transplant" the whole efi computer system, efi intake, fuel rails, injectors, sensors, and wiring harness into your vehicle...which generally leaves you looking for some way to interface with the computer and tune it yourself or get it tuned for best performance or in some cases...just to start.

Anything from the 4.8L truck motor...thru the 5.7L LS1 & LS6, 6.0 LS2, 6.2L LS3 car motors...and 6.0L LQ4-9, 6.2L L92, etc. truck motors....aluminum or iron block...they are ALL the same external size...and use the same mounting moints. Only the LS7 and LS9 are "different"...but not in physical size.