RedMilleniumZ28

iTrader: (2)

Alright guys I have been reading up and putting together a parts list for my build... It's going to be a stock LQ4 2002 Yukon XL Denali motor truck manifold build. Planning on ARP rods bolts... new rings and bearings...

Here is a little parts list I threw together(fuel system not started yet)

Turbo Set Up
On3 76mm Turbo
Turbo Lines
Turbosmart Hypergate 45mm waste gate (Updated)
Blow-Off-Valve
Intercooler and Piping
2 truck Manifold Flanges
Mandrel Exhaust Tubing
Turbo Flange
O2 Bungs

LQ4 Set Up
LS1 Windage Tray
LS1 Oil Pickup Tube
LS9 Head Gasket
LS6 Intake
Patriot gold dual springs (Updated)
Ported LS6 Oil Pump
LS2 Timing Chaing
GM LS7 Lifters
Hardened Pushrods
ARP Rod Bolts
ARP Main Studs (No longer doing this)
ARP Head Studs (No longer doing this)

Going with EPP blower cam now (Updated)

If you guys have any input or recommendations for this build please let me know.... Parts I shouldn't run parts I should run and so on!!!

Thanks!!!

RedMilleniumZ28

iTrader: (2)

Anyone?

I would like to start Piecing stuff together fairly soonish....

Hank Peabody

iTrader: (2)

You could save alot of time and money and run the LQ4 stock other than the cam and springs...the main studs, rod bolts, ls9 gaskets, lifters arent really needed, you can take the stock short block further than that turbo will go. Head studs arent really even necessary. Rings and bearings are just a hassle too, the stock stuff is very good. Good luck!

RedMilleniumZ28

iTrader: (2)

thanks for the info...
well the block has been sitting for about a year in the garage disassembled... rings are a must because i broke one lol and the engine came out of my dads truck because of bad rings and he found a cheap used motor to swap... i havent looked at the bearings yet because the crank is still in the block so unknown condition of them... bur wouldnt rod bolts be a good idea because that is a weak point in most FI engines?

Hank Peabody

iTrader: (2)

Yeah none of the stuff you want to do hurts, just ideas to save time and money. Rings definitely sound needed! The rod bolts dont seem as needed as most people once though, if you read some of the more recent discussions about it there are alot of people making alot of power with stock rod bolts. I think it was the original LS1 engines that had the worst rod bolts, the newer engines like the LQ4 have better. Cant hurt to replace them though and its not that expensive, especially since you already have it all apart. Good luck, should be a fun setup!

RedMilleniumZ28

iTrader: (2)

ya i guess studs for mains and heads are little overkill for only 10psi but ill be doing rod bolts no matter what... and Saving money is always nice lol....

Also the LS9 springs are going to be a no go.... LPE told me that they specs of them are,
80# @ 1.800
285# @ 1.250
1.200 coil bind

arnt the LS6 springs like 95# closed?

looks like i cant save any money on springs lol....

Hank Peabody

iTrader: (2)

For a budget spring look at the PAC 1218 springs, around $120 on SDPC

RedMilleniumZ28

iTrader: (2)

Dang I've never looked into those ill check them out thanks!

FAST LS1

iTrader: (2)

Your build looks similar to my build, except you're going with the large cubic inch truck engine.

https://ls1tech.com/forums/forced-in...-3l-build.html

I read up on "Skinnies" build, and have tried to copy his findings since they seem to be very productive.

Most people seem to use the Patriot Gold valve springs with good success.

RedMilleniumZ28

iTrader: (2)

haha ya different car though...lol

Ill check out his thread also..

Im thinking about PAC Racing 1218 springs(thanks to HANK) good price and nice springs pressures!!!

RedMilleniumZ28

iTrader: (2)

Hey guys i updated my list at the top with new stuff switched around...
Springs will be Patriot dual springs
EPP Blower cam
and i just won a new turbosmart hypergate 45mm wastegate for $200 so ill be using a good wastegate to protect my engine!!!