GM also offers a book. well, more like a booklet (35 pages), but still well worth having.
LS1 Engine Kit Installation Guide
The one I have is PN 88959384 and was revised 9/1/01
They have probably made updated ones since then but it has GM part numbers, pictures, DTC, PCM pin-outs, wiring diagrams/ engine control schematics, etc
I've found it very helpful for my swaps. I've done two so far. My '67 Firebird will be my 3rd LS1 swap.
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