Engine Number Decoding-HELP!!!

[fatfords]

I am considering replacing my engine with one of 4 motors that a "friend in the business" is willing to sell at a good price. I have checked the MorTech website and found some information, but would like more details on the complete engine, if it is available. Here are the block casting numbers and all info that I have found. Any additional info would be greatly appreciated!

SB #1
pass side casting #10243890
driver side casting 5.7LG SGI
barcode on oilpan- XJA *10XJA V608072217*

no listing on MorTec

SB #2 (LT-1)
pass side casting #10125327
driver side casting 5.7LG SGI
barcode on oilpan- WHA *10WHA V304221605*

from MorTec-350-92 & up-2 or 4 bolt main-GEN II-LT-1

BB #1 (TBI)
pass side casting #101141182
driver side casting K083
barcode on oilpan- FDJ *10FDJ T310140297*

from MorTec-454-91 & up-4 bolt main-GEN V

BB #2 (VORTEC)
pass side casting #10237297
driver side casting B047
barcode on oilpan- PDX *10PDX T202070105*

from MorTec-454-96 & up-4 bolt main-VORTEC 7400-"L-29"

These are all complete motors without computers. I am looking for HP/torque ratings, info on heads/cams/cranks/etc and what vehicles they may have been used in (to know what computers to look for).

Any help will be greatly appreciated! I may be offline for several hours, but will check back frequently.
Kent