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#1
01-01-2010, 03:55 PM
Hummer Veteran
Join Date: Nov 2009
Location: Hambach, Germany
Posts: 78
408 Hummer road test....Medford to LA
Got the 408 running on Christmas Day. Me and my brother drove it from Medford Oregon to Gardena California to ship it to Germany on the 26th. It ran great for the 750 mile trip. I am changing the gears from 4.10 to 4.56 to compensate for the 37s. It pulls hard and strong, especially from 5000-6200. I am going to have Allen Nelson retune the PCM to shift at 6500 at WOT.
Next mods are lower gears, Cognito tie rod kit and idler kit.
The engine sounds really nice, especially at 5000 to 6200.
I will make some youtube videos as soon as it gets to Germany.
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2003 H2, 408 CI, K1 Forged 4" stroke crank, K1 6.125" forged rods, Wiseco X-Series 0.30 forged pistons, Schneider cam, FAST 102mm LSXRT, precision flow injectors, Comp Pro Magnum rockers, SA Gear DR timing set, ARP main studs, 90mm ETC TB, Airaid MIT, MSD Coils/wires, Dynatech Headers/high flow cats, Magnaflow, Jessie James Black Widows 20x9, Nitto Dune Grapplers 37", Fabtech 6" lift, CK Performance XHD 4l70e and 4.56 Gears
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