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Re: 8.1l 1500?
I'd do a 6.0L (much better mid and top end power) swap, unless you are planning on towing something very heavy lots. The tranny and rear diff of the 1500 would grenade pretty quickly with the monster low end torque of the 8.1L. Even the power of the 6L will put lots of stress on the drivetrain components, but would be manageable with small upgrades. the 1500SS has a upgraded tranny (4L65E) over the standard 1500 (4L60E). If you decide to do the 8.1 I would def. upgrade to a 4L80E or a well built 4L60. If Im correct the 6.0L is almost a drop in replacement.
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2004 Silverado Half-Ton Crew
7-9" Cognito Lift (set at 8" right now) Betts 7" rear springs w/factory block
3" PA Body Lift
Yukon 4.88's with Auburn LSD
Xentec 6500k HID lows, Silverstar Ultra brights
Wade in channel window vents
Covermaster Top
Flowmaster 40 series, dual outs
Nelson 89/91 HOT TUNE
20" MB Gunner 6's, 37" Toyo Open Country MT's
Eclipse AVN6600 w/sirius and IPOD controllers
Code Alarm w/ Remote Start
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