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Top Truck Challenge 2011

2011 Top Truck Challenge

Tim Dallner: 1994 Chevy S-10

Top Truck Challenge 2011 Competitors:Show & Tell

By: Douglas McColloch, Ken Brubaker, Photography by Ken Brubaker, Sean P. Holman
Enveloped in owner-built DOM tubing, this slick S-10 relies on 54-inch TTC Claws wrapped around 20x12 Stazworks wheels to keep rolling. Warn winches with synthetic rope, both front and rear, keep the rig moving when the tires can’t, and a custom snorkel re-routes the air intake above the Chevy’s roofline; that should be sufficient for the Tank Trap’s Water Hole 1, but after that, who knows?
Enveloped in owner-built DOM tubing, this slick S-10 relies on 54-inch TTC Claws wrapped a

Truck class: Best of Both Worlds
When we broke up Top Truck into separate Truck and Buggy classes, we knew we’d eventually run into a rig (or two) that left us wondering which category it belongs in. Tim Dallner’s S-10 was a case in point, with a partial/chopped frame, the looks of a truck, and lots of buggylike DOM tubing. Whatever it is, it’s got power under the hood to keep up with the truck guys in the bogs, and the suspension flex to hold its own with the rock buggies. Readers were similarly impressed and voted in Tim’s Ontario-based Chevy to play at TTC.

The Details

  • Owner name/city: Tim Dallner/Sebringville, Ontario, Canada
  • Occupation: Tool and die maker
  • Vehicle model: 1994 Chevrolet S-10
  • Estimated value: $30,000
  • Engine/aspiration: 355ci Chevy V-8, bored .030 over; Clevite cam, pistons; Dart II heads; balanced and blueprinted; Edelbrock intake, custom exhaust
  • Transmission: B&D Transmission TH350 w/full manual throttle body
  • Transfer case: Off Road Design NP203/205 doubler
  • Suspension (f/r): Four-link, Currie Johnny joints, 16-in ORI struts/four-link, Currie Johnny joints, 16-in ORI struts
  • Axles (f/r): 2½-ton Rockwell/2½-ton Rockwell
  • Axle ratio: 6.72:1
  • Wheels: 20x12-in steel Stazworks beadlock
  • Tires: 54x19.50-20 Mickey Thompson TTC Claw

Up front, a custom four-link with Currie Johnny Joints provide articulation, while ORI struts offer 16 inches of travel and limiting straps prevent the axle from going AWOL at full droop. The Rockwell 2½-ton has been stuffed with Ouverson shafts, a Yukon locker and 6.72:1 gears. Steering is full hydraulic, with custom Heim joints courtesy of Evolution Machine.
Up front, a custom four-link with Currie Johnny Joints provide articulation, while ORI str

Tim Dallner, Team #2

  • Most looking forward to:“Tank Trap. It looks like a lot of fun if everything holds together.”
  • Not looking forward to:“Frame Twister. Don’t want to leave my axles in the log pit.”
  • Playing on his iPod/CD player:“Don’t own one, and the wife won’t let me touch hers.”

  • The balanced and blueprinted Chevy small-block has been bored 0.030 inch over to displace 355 cubic inches, with machine work performed by Holloway Automotive Supply. Clevite pistons, Dart II heads and rocker arms have all been installed, and a Clevite bumpstick (.448-inch lift, 214-degree duration) engages the valvetrain. An Edelbrock intake manifold rests atop the block, an Exide Orbital battery cranks the engine via Mallory distributor and coil. All told, the engine produces an estimated 400 horsepower, which are sent to a full-manual valve-body Turbo 350 built by B&D Transmission.
    The balanced and blueprinted Chevy small-block has been bored 0.030 inch over to displace
  • The S-10’s interior is about as Spartan as they come. A host of Auto Meter gauges and a custom switchbank rests in an aluminum dash, though the OE tach and steering wheel were retained. Behind the seats are the relocated radiator and cooling fans, a pair of fire extinguishers, and a big blue nitrous bottle for those times when a little extra juice underhood is required.
    The S-10’s interior is about as Spartan as they come. A host of Auto Meter gauges and a cu
  • The rear suspension mirrors the front, with a four-link and struts locating the axle. The Rockwell 2½-ton is engaged via a driveshaft from Industrial Hydraulics & Machine, which in turn is spun by an Off Road Design NP203/205 transfer-case doubler. As with the front, the rear axle runs a Yukon locker, Ouverson shafts and 6.72:1 gears.
    The rear suspension mirrors the front, with a four-link and struts locating the axle. The
By Douglas McColloch, Ken Brubaker
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