Built Lq9 upgrade help

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Mar 18, 2010 | 08:57 PM

mitdrx

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Built Lq9 upgrade help

I just picked up the following setup: Where can it be improved and whats next upgrade wise?

LQ9 6L block (Chevy 3500 HD Truck Block)
Bored .30 over
Eagle forged 4 in stoker crank
Eagle forged H Beam rods
Diamond 2cc flat top forged pistons
Diamond rings gapped for nitrous 1.5mm/1.5mm/3.0mm ring widths
Diamond Rist pins
Clevite Bearings Main/Rod
ARP Main bolts
ARP Rod bolts
ARP Head bolts
ARP Crank Bolt
Melling Oil Pump
Double Roller timing assembly
Comp Cam Custom Ground 246/250 (@ .500 lift) .630/.630 actual lift
Patriot Gold valve springs
Patriot retainers and valve clips
New valve seals
LQ9 mild ported heads
Comp Hardened Push Rods
New OEM lifters
Underdrive Pulley
Z06 intake
Cold air intake
42 lb injectors
FAST Fuel rails
Aeromotive FPR
Dual Walbro 255 lb/hr fuel pumps
-8 Braided Black fuel line, -6 Return line
MSD Spark Plug wires
GTO Oil pan/pickup/windage tray
New Water Pump
Hinson LT Headers

Mar 19, 2010 | 06:41 AM

blue99fbody

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Would benifit from a fast 102 over that ls6 intake and what size headers? 1 7/8" headers would be better if u have 1 3/4

Mar 19, 2010 | 07:37 AM

1CAMWNDR

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That's a lot of cam for mild ported 317 heads and an LS6 intake. What size valves?? What is the purpose of the vehicle gonna be? Street/strip? And what percentage of each?

Mar 19, 2010 | 08:21 AM

mitdrx

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Ill check into the fast 102intake. Its going to 85% street. Any thoughts on heads and or tb? Am I missing any bolt ons

Mar 19, 2010 | 09:11 AM

1CAMWNDR

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It would really like bigger heads. I have 2.055"/1.60" Cartek 5X heads on my 421 which I think started as a 243 casting. Throttle body??.....BIG

Mar 19, 2010 | 09:20 AM

PAGregSS

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From: Danville,PA

If the heads aren't milled, you can probably mill them down for a good bump in compression too.

Mar 19, 2010 | 09:26 AM

mitdrx

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Im at 12:1 right now

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Mar 20, 2010 | 09:31 AM

squirlNUTZ

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From: Oklahoma

Quote:

Originally Posted by mitdrx

Nice.
I dont think the camshaft is best for nitrous, but I could be wrong. Id contact comp, and hope you get some one who knows what they talking bout. A custom ground cam for those heads, compression ratio, intake and nitrous is somthing you will have to research.
What kind of car does it go in. You can purchase a Super Victor intake manifold, converted already to fuel injection, with Edlebrock 90degree elbow and Edlbrock [90somthing] millimeter throttle body, for $750.00.
OR you could upgrade your intake to a F.A.S.T. manifold, for $1100.00 intake only, and let me purchase the LS6