Put your ARCA rockcrawler on the trailer and forget about your 200:1 gear reduction, because it's time to go fast! Seems like everyone these days has got it in their minds that four-wheel drive is only for going slow, so we wanted to show you how much fun it is to travel at lethal speeds when you build a vehicle that can handle it.
Consider this phase one of a three-part story where we'll show you how we built a street-legal pre-runner out of a '01 Chevrolet Suburban. Some of the things we'll do with this truck will be more race than street, and others will be more street than race. Don't feel left out if you don't own a late-model GM (or if you don't own a GM at all) because secretly we positioned a '73 GM truck chassis under the late-model Sub's sheetmetal.
To make sure this buildup came together before they outlaw the internal combustion engine, we enlisted the talents of Maurice Rozo and the staff of Off Road Unlimited in Burbank, California, to help us with the project. We knew ORU would be up to the task of building this kind of high-end project because they helped us two years ago with the buildup of our 4xQuad project Dakota (Mar., Apr., May, and June 2000 issues).
We begin this month by tackling an engine swap no one has ever shown you before. Working closely with Chevrolet we scored a new 8.1L Vortec engine from a '01 3500 truck. We were psyched to find out that this is more of a bolt-in than we would have ever dreamed. The toughest part of the swap will be making the factory fuel injection work in another chassis, but since this is 4-Wheel and Off-Road we've got that covered too.
Next month we'll show you how the slick suspension went together with coilover and bypass shocks. We'll walk you through the plumbing and electrical, and give you a look at the tricks desert racers use to cool 800hp engines in 100-degree heat. We'll wrap it all up in July with a shakedown run on the open desert to show you what this thing can do. See you at the finish line.
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The foundation for our '01-bodied Suburban is actually a '73 Chevy pickup truck frame that
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Unless you work at the Tonawanda, New York, assembly plant, this is probably the first tim
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ORU fabricated this engine plate to mount the 8.1L lower and farther back in the chassis t
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More good news. The 8.1L is internally balanced and will accept the old 14-inch, 168-tooth
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It gets even better. Even though GM has adopted a new engine-mount location on the new Sil
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We wanted to run a mechanical throttle cable but all 8.1L engines use a drive-by-wire elec
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Headers make more power than factory exhaust manifolds, but no one makes a full-length tub
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We knew we were going to run an external Fluidyne oil cooler mounted at the rear of the Su
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We'll just tease you a little this month with a parting shot of the ORU-designed front A-a
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BBK Performance
1871 Delilah
Corona
CA
92879
909-735-2400
www.bbk2.com
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Jet Performance Products
www.jetchip.com
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Borla
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Morse Muffler
1022 W. Burbank Blvd.
Burbank,
CA
91506
818-848-1058
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Off Road Unlimited
www.offroadunlimited.com
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Chevrolet
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Fluidyne
2605 E. Cedar St.
Ontario
CA
91761
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System 1 Filtration Products
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