1990 C1500 LQ9 Swap Questions, From Alaska.

[Big-Sexy907]

kewljay, thanks for the reply. When I get home I'm going to take a trip to the yard and see what motors are available. From there I should know what I'm going to be looking at for an ECU and I'm going to definitely be ordering a 4l80 in the future.

Thanks everyone for keeping this forum updated with information, it sure is helpful!

[Big-Sexy907]

Finally made some decisions on an engine and transmission setup. Looked around at the salvage yards and found it difficult to source a 6.0 for under $1600, decided to go with a 5.3 out of a 2000 Silverado, and mate that to a 4l80e from a 1999 Chevy Express Van 2500. I also found a plethora of ECU's from the same yard for under $100 dollars... So it looks like I'll start stockpiling parts for the swap into my bagged 1990 C1500 sooner than I thought.

[Big-Sexy907]

Ordered the following parts:
Schoenfeld headers ls to truck swap style.
CTS-V oil pan, pickup, dipstick and tube.
Carshop Inc 1" setback mounts off ebay.
HP-343 Fuel Pump kit, and adapter fittings ordered.

I'll also be picking up a 5.3 and 4l80e from a recycler in the coming weeks.

Engine harness will be coming from Nelson Performance.


Can someone help me out with a clear defintion of whats needed for the fuel system?

I'm going to order the HFP-343 fuel pump kit
what else do I need to get fuel system working properly? Some say use a corvette fiter regulator, others use other parts...


And I'm going with some -6an fittings for the transmission lines so I can run braided stainless.
http://www.sweetperformance.com/prod...ory&cat_id=241

Thanks for your help!

[Big-Sexy907]

I'm also looking at the Comp Cams 1449121 or the 224/232 cam, upgraded 7.4"x5/16" pushrods with 99831 beehive springs... I'll reuse the retainers.

[Big-Sexy907]

Update,

A different recycler has a 80K 6.0 out of a 2006 Denali, Matching ECU, and a 1999 4l80e on hand... I'll be picking it all up this Saturday!