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lq4/9 engine

This is a discussion on lq4/9 engine within the Internal Engine forums, part of the LSx Technical Help Section category; ok little back ground here. as most can see I was here back in the day(1999)screen name stopped working had ...

  1. #1
    Junior Member MARCUSWON's Avatar
    Join Date
    Oct 2006

    99 TRANS AM m6

    lq4/9 engine

    ok little back ground here. as most can see I was here back in the day(1999)screen name stopped working had to renamed in 2006. was a street racer. had to stop cause of the family life. now kids are grown and wife is cool with me getting back in. just not street, track only. i have a few of the lq4/9 engine that I have kelp over the years. every thing has changed a lot. now intro is over lets get down to it.

    which way and what suggestion would you all have. have the lq complete blocks(core motors) and have 317 heads on them. here the base line. going into a 2003 Tacoma king cab(customer abandoned). carb set up for sure.8.8 with 456 gears, 29/10.50 15 power glide with 1.82 and going to do nitrous to get me where I want to be that the motor dont get me. looking to get into 6.0 to 6.25 in the 1/8 to start.

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Ugy Lower Corner of AL

    Navy Blue Metallic
    98 T/A w/a little mods...

    Here ya go. Here are 3 recent engine builds 2 with 6liter blocks.

    One is mine that started out as a basic 6liter build that ended up as a 403ci (Currently dyno @ 450RWHP till new injectors are installed)

    Engine Builds

    6.0L Block - Forged 403 built, breaking it in , Polluter Stg3 Cam, FAST 102mm Intake, NW102 TB, MSD wires, NGK TR6 plugs, Truck Coil Packs, LS3 Fuel Injectors, CC Pacesetter LT Headers, TS&P ORY, QTP e-Cutout, Magnaflow Muffler, SLP Air Lid & Line Lock, Catch Can, Stage 2 T56, PRO 5.0 Shifter, Tick MC, Monster Stg 4 Clutch, QT SFI BH, MWC DSL, UMI: SFC, PHB, LCA's, LCA Relocation Brackets & TA, Hotchkis Springs (1" Drop), YR1 Snowflake Wheels wrapped in NT555 tires & Custom Fab Ford 8.8 rear w/4.10 Yukon Gears, WSQ Hood, 3"CM Strange Eng Drive Shaft.

    Horsepower never lies, but is often lied about!

  3. #3
    Moderator 98TransAmWs-6's Avatar
    Join Date
    Apr 2010
    Fairfax, VA

    Black/ Silver
    98 TA WS6/ 01 C5 Corvette

    Mine which is the 421 ci build in that list started out only doing a stock rebuild lol. My build is not finished yet but the machine shop is almost done with it so soon it will be back in the car. I'd look at them all to get an idea of what you want. Mine is more of a max effort NA build but it will give you an idea on the sort of parts you'd want for something like that.
    1998 Trans Am WS6 - Phantom
    421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
    (Coming Soon) BMR DSL, UMI TQ Arm
    421 LQ9 14.8:1 on E85 Build/

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