Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Going from BBC back to SBC(2) will have questions...
View Single Post
  #2 (permalink)  
Old 09-19-2005, 04:27 PM
ZipZ28's Avatar
ZipZ28 ZipZ28 is offline
Nitrous Junkie

Last journal entry: Reflooring The Bed Pt. 2
Last photo:
Join Date: Jan 2005
Location: Near Bridgeport, Tx.
Age: 66
Posts: 90
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
It's my understanding that the LS1 harness and the 5.3 harness are the same except for the injector connectors. I'm not familiar with the 5.3, but with the LS1 out of a late model fbody you have 3 plugs that have the wires that are needed to add power to the PCM. Basically it's pink wires to ignition switch on, and orange is to batt pos. You'll probably need a pinout of the PCM to trace the PCM grounds from.

The hotcam should make good power in a 5.3. It's sure has a nice lope to it! If you plan on swapping out the valve springs check into a set of LS6 springs, good to about a .560 lift and a set is about 60-70 bucks.

I'm putting a LS1/4L60e into a 41 Chevy, but I haven't modified my harness yet, but hope to get to it in a couple of months. If you want a shop modified harness ready to go PM me and I'll send you a link or 2.
Reply With Quote