Ol'Yeller! I picked up a '72 GMC, and so it begins!

[mcbassin]

Originally Posted by MercRising

Finally have some cash saved up for an engine/trans swap. If I can find a Lq4 or Lq9 for the right price, that's my chosen path, along with a 4l60e. I plan to run it stock for a while, as I save up and stack parts for a turbo kit. Thinking single turbo for now, considering costs and all.

This will be my first try at a swap, so please feel free to help me along with missing items in my parts list below!

So far here's my ever growing parts list:


7) Fuel Lines and fittings (TOTALLY LOST HERE, HELP ME)

This is the list I used on my truck:
I am using a Walbro GSL392 Universal Inline 255LPH Fuel Pump and Kit (Ebay $100 shipped)

1ea. 33737 Wix filter Corvette style filter/reg. (Found on Ebay or Epay $30 shipped)
2ea. RUS-644123 6AN-female quick connect HERE
(1 for the rail and 1 for the filter)
1ea. RUS-640940 6AN-Male Q.C. HERE
1ea. RNB-800-120 5/16 Q.C. (from return on filter to tank) HERE
1ea. RUS-670470 (Fitting for fuel pump)HERE
1 ea. Stainless Fuel line HERE
4ea. AN-6 fittings HERE

[MercRising]

Originally Posted by mcbassin

This is the list I used on my truck:
I am using a Walbro GSL392 Universal Inline 255LPH Fuel Pump and Kit (Ebay $100 shipped)

1ea. 33737 Wix filter Corvette style filter/reg. (Found on Ebay or Epay $30 shipped)
2ea. RUS-644123 6AN-female quick connect HERE
(1 for the rail and 1 for the filter)
1ea. RUS-640940 6AN-Male Q.C. HERE
1ea. RNB-800-120 5/16 Q.C. (from return on filter to tank) HERE
1ea. RUS-670470 (Fitting for fuel pump)HERE
1 ea. Stainless Fuel line HERE
4ea. AN-6 fittings HERE

I think I'm going in tank pump since it came out of an LS car. Will I need a regulator and filter still?

[MercRising]

Grabbed a set of 2002 Camaro Z28 fans today, for the LS swap parts stack.

Should I grab that matching radiator too?

As for what I done since I bought the truck and started the post...... it's got 2.5" drop spindles w/3" drop springs up front, then a JDM flip kit out back. That flip kit netted probably 6.5+ drop. I had to take out the original 2" drop springs up front and replace them for 3", making the front about 5.5 drop . Otherwise the front end looked about an inch too high.

Also had some interim brushed 15" wheels, then the new 20x9 black wheels, Cab is now painted white too, much better!! I'll post up some pics once I get my to my external hard drive but, lets just say it looks MUCH better now.


Itching for the motor swap........

[MercRising]

Moving along.......

Picked up a 2005 L59 5.3l with all the accessories, harness, and computer etc. Ripped it down to inspect it and all looks pretty clean, crank/pistons spin very smooth. Saw no major leaks around the motor, which is nice.

I've got the harness/TCM/gas pedal/flex plate from the 5.3l but, I think I'm going back to swap it for a 6.0l harness/TCM etc, and a 4l80e flexplate. I say that because I'm going to mate a 4l80e to this 5.3l motor, just to cover the stress of boosting it later!

I've decided that using the 6.0l/4l80e harness will be easier with respect to the transmission controls/tune. Also for the fact that we can tune the 5.3l with the ECM from the 6.0. Using a matching 4l80e tune as well as having all the right trans connectors makes the swap more simple, I think. Does this make sense?

[MercRising]

Originally Posted by mcbassin

This is the list I used on my truck:
I am using a Walbro GSL392 Universal Inline 255LPH Fuel Pump and Kit (Ebay $100 shipped)

1ea. 33737 Wix filter Corvette style filter/reg. (Found on Ebay or Epay $30 shipped)
2ea. RUS-644123 6AN-female quick connect HERE
(1 for the rail and 1 for the filter)
1ea. RUS-640940 6AN-Male Q.C. HERE
1ea. RNB-800-120 5/16 Q.C. (from return on filter to tank) HERE
1ea. RUS-670470 (Fitting for fuel pump)HERE
1 ea. Stainless Fuel line HERE
4ea. AN-6 fittings HERE

Since I am using the 02 Camaro tank, my set up will look like this......with the T fitting leading to my rail. I assume I'll need to get a Fuel Pump Relay kit too.

[MercRising]

Current tracks of thought.....

-Worried I'll overlook something on the harness conversion and ECU flash
-4l80e segment (or whatever)
-Fan/FP Relays
-Tow Haul switch (perf mode)
- Remove VATS etc..
-Rewire/add for 4l80e on 4l60e harness
-Neutral Safety Switch delete..is this normal to remove?

-Still not 100% on my returnless fuel system and plumbing the '02 F-Body pump/reg to the rail.
-Also wondering if I will not need the pressure sensor hooked up ?


-Since I will boost in the next year or so.....should I get a larger than 255lph in-tank FP....maybe a 400lp for plenty of grow room??

-How do I link the the 4l80 to my current column shifter?

-Gauges....keep stock or spend $$ on new bezel and gauges? What's involved with keeping stock?


And more will come to me any minute.....just trying to start solidifying my list of to do's and start ordering some parts/services!!

:uhmk:

[MercRising]

Found out an '03 harness has different injector plugs than my '05 injectors. Need to head to the yard and swap it with the guys. I got my stuff at Boothill Truck Salvage here in Denver, they've been real cool about the whole process of getting my motor/harness. Also, I still need to get a 4l80 and flex plate to match.

Can you guys tell me if there's a checklist of harness conversion items that need to take place?

ie items such as....Fan relays, FP relay, CEL, OBD-II Port, Tow/Haul toggle wire?