A sensible individual has to respect an impressive truck build, no matter what the make or model. Personally, we’re pro-Chevy here at OFF-ROAD magazine, but we think even the most anti-Bowtie guy would have to appreciate the amount of work that went into James Mullinex’s ’03 Chevy 1500.
Between the construction performed by both KibbeTech in Simi Valley, California, and A&A Corvette in Oxnard, California, this Chevy has turned out to be just as mean as it looks. With over 500 horsepower feeding through a 4L80E to a built 9-inch rearend, this KibbeTech long-travel truck—packing over 20 inches of front suspension travel—can absolutely fly over rough terrain.
Thirty seven-inch Baja T/A tires tuck under Glassworks and Trailer Products fiberglass, which allow the front tires to compress a full 10 inches upwards from ride height. James —who works at A&A Corvette building almost quadruple-digit horsepower engines—built himself one serious LQ9 that sits under the ’03’s slanted hood. Even after the parasitic loss of power through the drivetrain, James’ engine pumps out 435 horsepower to the rear wheels.
And like any other project, James’ truck is still not quite done. His next step is to connect the engine cage and bed cage in between with a full interior rollcage that will follow through the fire wall to the engine cage and out the rear of the cab to the bolt-in bed cage. Not only will it bring safety to the truck, it will add rigidity and improve the way the truck works.
|Vehicle:|| 2003 Chevrolet 1500 2WD Extended Cab|
|Owner:|| James and Christina Mullinex|
|Chassis:|| factory frame, plated and boxed by KibbeTech, KibbeTech engine cage and bed cage|
|Engine:|| 6.0L LQ9 short block, A&A Corvette ported cylinder heads, A&A custom-ground Corvette camshaft, late model intake, 90mm throttle body, adjustable fuel pressure regulator, A&A custom programming on PCM, 435 RWHP, 392 lb-ft of torque|
|Transmission:|| CRC 4L80E transmission built with cryogenically treated input and output shafts, five-gear planetary, B&M tranny cooler, 2800 rpm stall converter|
|Rear axle:|| Currie 9-Inch Prerunner housing, 4 inches wider per side than stock, disc brakes, Currie nodular iron third member with Detroit locker and 5.14 gears, 35-spline axles|
|Front suspension:|| KibbeTech long-travel kit with 20 inches of travel (10 inches up and 10 inches down), gold-anodized billet upper A-arm, boxed lower A-arm, 10-inch-stroke 2.5 Fox coilovers, 2.5 Fox hydraulic bumpstops|
|Rear suspension:|| Spring-under Deaver F87 leaf springs, stock shackles, KibbeTech-reinforced spring hangers, 2.5 Fox hydraulic bumpstops, 16-inch-stroke double-bypass shocks, KibbeTech bed cage|
|Steering:|| KibbeTech rod end steering, 5 inches wider per side to match the suspension|
|Brakes:|| Wilwood proportioning valve under the seat, KibbeTech weld-in master cylinder fittings and reservoir, brake lines by DMP Fasteners|
|Tires/wheels:|| 37x12.50R17 BFGoodrich Baja KR on 17-inch Method Standard wheels, KibbeTech custom lug nuts|
|Interior:|| Factory Chevy interior|
|Exterior:|| Glassworks front fiberglass fenders reinforced on the inside with Line-X, Trailer Products 6-inch-wider-per-side rear bedsides reinforced with Line-X, KibbeTech bumpers and skid plate|
|Other Parts:|| Full aluminum radiator, electric fans from ’08 Escalade, KibbeTech spare tire mount and trailer hitch, Chip’s Muffler custom exhaust with Magnaflow stainless-steel muffler, Line-X in bed|