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Old 03-17-2008, 08:35 AM   #12
91blkstpsd
Slow Truck

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Join Date: Jan 2005
Member ID: 22825
Location: Tennessee
Age: 23
Posts: 1,246
Re: OBS rcsb TBI to LT1 swap
Quote:
I'm in the process of swapping an LT1 into my Blazer right now. What are you doing about the wiring? I've got my harness laying on the floor right now, scratching my head trying to figure out what wires to cut

The wiring isnt as bad as it looks. I felt the same way starting out. One thing that should help is to label all connections then once you have you engine in the vehicle, start laying on the harness and plugging in everything you will use. Once this is done you can start pulling wires that you wont need. ie EGR, smog, etc. To tap into your vehicles harness you will need to locate a few main wires. Fuel pump prime, alt turn on, and a few powers. Also I took the factory distribution block on the firewall and cut it in half. Label one side as B+(constant 12v) and the other side as Switched. This is where you will run all your power wires to. Ill post some pics of what Im talking about. Anyways, Im getting carrried away. haha Here is you a start. Good luck

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'06 CC Z71
'91RCSB:LT1 & 4L60E swap,Hotcam,1.6RR,52mm TB, headers,MSD,,Built trans,TransGo,TCI stall,Ultralite Gauges,leather+suede,billet,shaved,4-6 drop,20"s
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