Are the turbo's different from the mechanical injector pump engines to the computerized pump engines? Will the newer turbo's bolt on the older engines? Is one bigger than the other? Do they have aftermarket turbo's for the older style? Have a 93 6.5 with no turbo. bout it off a friend. engine is in great shape. want to use it.. but need a turbo.. any info would be very helpful! Anyone know where i could get a good deal on one? Thank you all for your time!

Yes, they're gm-3 on the mechanical, then efi used GM-4 through GM-8.
yes, they can fit any 6.2L/6.5L
The 8 is the best of the lot

Junkyard or ebay.

Do a search on ebay motors for Banks, just saw a complete sidewinder setup for a 6.2/6.5 it is at 800.00 right now.:cool2: