Already a plug there. For the life of me I can't figure out what it went to. Other ideas?

 

That's not the hood light connector? On my 99 Silverado (again) I had to replace the hood because I had a minor fender bender and got bent. Replacement didn't have a hood light so I just have a wire hanging there.

 

I bet that's it.
I forgot to look under my hood earlier.

 

my 2004 truck doesnt have that connector and wire colors.

 

It seems like that hood light was deleted at some point. Maybe it was a 99-02 only?

My 2004 project suburban doesn't have it either.

Here's my 99. I had a scary incident when my hood wasn't closed all the way down and in the freeway in a construction area it flung open up in rush hour! Thank God I managed to stop and didn't wreck. I pulled over and then got stuck in the median. I managed to get out (thanks to the G80 that didn't blow up on me), removed the bent hood and threw it in the bed and arrived to my destination without a hood. That's right before I decided to do my V6 to V8 swap. Actuall, I think that's when I decided on it. I even labeled the plug when I pulled the engine, LOL.






Darn, now I want to find a replacement hood light! 🤦

 

It's the underhood light! I kept looking for a connector on the old engine. Lol. Thanks again all. Should get to start it this weekend!! I'm beyond excited.

 

robbieroflcopter
great write up.

I'm thinking / doing the same thing to my 2002 Z71 5.3/4L60E Single cab shortbed. (LS3 6.2 w/4L80)
would you post just what you did and the parts you used with links.
what ECU did you use?

 

I'll get you a parts list tomorrow. Pretty simple when you know what to get I think.

 

I used the stock ECU and am getting a tune from Michigan Motorsports. I talked with them a bit and they say it will be no problem to get it tuned.

Engine: https://www.summitracing.com/parts/MLL-PSLS3760CTF
Throttle body: https://www.summitracing.com/parts/SNE-860008-1
Converter: https://www.summitracing.com/parts/SUM-700338
Conversion box: https://www.summitracing.com/parts/LPE-L460065397
Knock sensors, moved to side of block: https://www.summitracing.com/parts/HLN-2KNC0025KIT
Headers: https://www.summitracing.com/parts/BBK-4005
Fuel pump: https://www.summitracing.com/parts/VPN-TU432HP-2
MAP sensor, used Blueprint's stock one with this adapter: https://www.summitracing.com/parts/ICB-WAMAP31-6
MAF, converted to card style: https://www.summitracing.com/parts/ADO-213-4222 via this adapter: https://www.summitracing.com/parts/ICB-WAMAF33-6
IAC and TPS: https://www.jegs.com/i/JEGS/555/14531/10002/-1
Tranny: https://www.jegs.com/i/JEGS/555/603025/10002/-1 You'll need to swap the bellhousing if you want all the bolt holes to line up. LS3 block is slightly different than LM7.

I used the stock passenger AC bracket but got the swap one for the driver's side from ICT. I also swapped the balancer and water pump for the truck version to line up with everything. Drill and tap the block for the knock sensors. Get an ICT angle adapter and rotation adapter to clear the water pump neck with the throttle body. A Holley throttle body cable mount will work after you modify it to hold the cables.

https://www.summitracing.com/parts/ICB-551781
https://www.summitracing.com/parts/HLY-717-15
https://www.summitracing.com/parts/HLY-20-147

Let me know if you have questions. I probably have 20-30 hours into it so far and hope to prime and start it this weekend.

 

Anyone know what transfer case is in this thing? It's the auto 4wd electronic model. Curious what kind of fluid it takes. It was green when it was leaking on the floor lol.