Project: Big White Elephant! 88 GMC Sierra LQ4/4l80e/Turbo Build

[Hivelocit]

Under Construction...88 GMC Sierra Reg. Cab LQ4 LSX



Hey everyone! This will be a slow build, but I thought I would start this thread in the meantime to give myself some sort of timeline and to introduce my project! Little background: Dad's old 88 GMC Sierra RCSB with the ole glory 350 tbi 700r4 he bought back in 1990.. Sadly he passed from us 10yrs ago, and I inherited it soon after so in his memory I wanted to build something fun! Any ways had always planned to rebuild the old power-plant a couple years back, and of course after a little research and stalking through this among other websites decided a conversion was in order! No brainer right?

After sometime of looking through junkyards I scored an 03 5.3 with all accessories, harness, computer etc. 2 kids and 2yrs later that same engine was still sitting in my garage..lol What can I say life happens! Well I'm on the hunt again, and during the last 2 months have been gathering parts as well as a lot of reading! Last month while I was looking for a 4l80e I found someone with said tranny, and when I went to pick it up noticed a beautiful 05 lq4 sitting directly next to it..! Cubic inches were suddenly screaming my name so I made the guy an offer of $1100 for both, and walked away smiling

Oh BTW, the 5.3L I bought a couple years back I later re-sold and guess what! Turns out it was a 4.8 (talk about feeling like an idiot) I checked the bore, but not the stroke! Valuable lesson because never will I take someones word on something again so easily.. especially a junkyard! Original receipt said 5.3, stroke said a different story!

Okay story times over for now so on to the mission!

Quick overview of my Truck:

1988 GMC Sierra Reg Cab Truck
2005 6.0 lq4
4l80e
Transgo HD2
Yank Converter 3000-3600 stall thereabouts eventually
Future Turbo Build... 76mm 8-14 #'s
Isky Tripple 12 cam
LS7 Lifters
New Clevite Cam, Rod, and Main Bearings
ARP Head Studs
ARP Connecting rod bolts
Comp 7.4 Hardened PR
Patriot Dual Valve Springs
Comps Cams Trunion Rocker Upgrade
Melling 10296 Oil Pump
TCI Flexplate
Dual Roller Timing Chain
LS9 Head Gaskets
3.43 gears
Aeromotive 340 Fuel Pump
Meth Kit
60# Injectors
Racetronix Fuel Pump Harness
Nelson Performance re-worked harness
HP potential 600+ hp skies the limit
Not a DD, weekend warrior... maybe a pass or 2 a year at the track... who knows!


BTW Who says you need help taking a truck bed off?