408 Build/Swap

[Blown240sx]

Well this months to start but I finally got everything in and the build has begun. We ran into quit a few problems out of our hands. First I had two rod bearings scratched in shipping, one retainer clip broken, missing bolts, wrong head bolts, and few other things but luckily everything has worked out to my advantage.

Here are some pics of the motor build. Hoping to install this week. maybe tomorrow or Tuesday.

Specs408 LQ9 (3500 HD Silverado motor 6.0L bored and stroked to a 6.8L)All ARP connecting bolts/Crank Bolt/Head BoltsEagle 4 inch stroker forged crankEagle H Beam forged rodsDiamond Forged 4.030 pistons 2cc reliefsDiamond 1.5mm/1.5mm/3mm rings gapped for Nitrous6.0L heads lightly portedPatriot Dual Spring Valve SpringsCustom Grind Comp Cam 246/250 .631/.631 liftDouble Roller Timing assemblyPorted LS6 pumpClevite Performance Bearings




















Modified by Blown240sx at 6:56 AM 8/1/2009

[Blown240sx]

I got it running. The oil pressure isnt very high though but I hope its just the gauge. Im not going to run the motor again till I figure it out.

http://videos.streetfire.net/v...a.htm

[Davidss]

Nice work!

[WDRacing]

Yep...that ***** is gonna scream. Assuming you don't have a oil pressure issue. Is the pump new? I see it says ported LS6 pump, what is ported on the pump? Can you shim the relief valve? Bare in mind I have never seen a LS oil pump.

[Blown240sx]

Ported means the outlet on the oil pump is ported larger for more oil flow. The insides of a LSx oil pump are very simple. Just a cog gear that rotates the pump part.

[WDRacing]

Does porting the outlet for more volume decrease pressure?

[Blown240sx]

No the LSx pumps have a spring in them that controls some of the pressure. Also the bearing clearance is what produces the pressure not the pump. The pump forcing fluid through is what you see as pressure.

[cnichols]

Should have gone with a real cam instead of the Baby Jesus cam.

Get some vids of that thing running a 9 second pass fool or I'll have to beat you to it!

[jrb240]

Should have gone with a real cam instead of the Baby Jesus cam.

Get some vids of that thing running a 9 second pass fool or I'll have to beat you to it!

It has to be streetable lol

[cnichols]

Haha...it was a joke because that cam is not small...at all. Fool! How's that slow vert coming? AIM: midcnichols We don't want to whore Mr. schiong's thread.

[jrb240]

slow vert aye?? I would hate to have to roll up that ls1! j/k Although I do think it would be a good race, I think I'm gonna get rid of it and get a Skyline R32, GTS-T but a Skyline none the less, don't worry an RB25 swap is on the list...(this is all dependent on the guy who wants my car (my dreams will probably be crushed but I'm praying)

[gaehrings13]

What transmission are you running with the lq9?

[Blown240sx]

T56

[Kalypso]

This is nuts I am posting for a bump, and so that I can keep it in my recent posts.

[jrb240]

New idle video. 200 miles left till dyno time.

http://videos.streetfire.net/v...8.htm

This is Blown240sx just under my roomys name.
Modified by jrb240 at 11:24 PM 2/7/2008

[jrb240]

My hands are so photogenic, it really shows in these build pictures...