4th Place

Blazing the quarter-mile with the fastest time and overall trap speed, Jason Stephenson proved that a bigger truck could compete with the rest of them. With AWD, an LS3, and plenty of go-fast spray, his Chevy was scorching the track and leaving everyone feeling blue. Unfortunately for the Silverado SS, Jason squeezed on the nitrous too hard and experienced a backfire during the drag race portion of our contest. The explosion was big enough to melt down a spark plug and actually meld some of the plug’s porcelain to a piston causing a knock. Jason’s weekend was finished but still managed enough points to hang onto Fourth Place even with two DNFs. Rolling 22-inch wheels, Jason could have easily shaved off some tenths with a smaller and stickier tire, but thanks to AWD, the SS was still a track terror. He tells us he will return with a faster combination next THROWDOWN, and we look forward to seeing the SS lay down even quicker ETs.


Year/Make/Model: '03 Chevy Silverado SS
Owner and City/State: Jason Stephenson | New Castle, Indiana


Engine
Type: 6.2L LS3
Heads: LS3 with Patriot Gold valve springs
Cam: Comp .581/.592 114 LSA
Induction: Homemade cold-air intake with NOS plate with 200hp jets
Exhaust: OBX long-tube headers with 3-inch single Borla
Cooling: Electric fan conversion from '05-and-newer Silverado
Fuel System: Walbro 255lph in tank pump, 33-pound injectors
Ignition: MSD 8.8 plug wires. NKG TR6 spark plugs
Engine Management: Factory computer with HP Tuners
Output: 515 awhp (est)
Built by: Jason Stephenson

Drivetrain
Transmission: RPM Level VII 4L65E. Precision Industries 3,200-stall converter
Rearend: Detroit Tru-Trac, 4.10 micro-polished gears, TA Performance diff cover

Chassis
Front suspension: Energy Suspension polyurethane control arm bushings and sway bar endlinks. Belltech 2-inch drop spindles, Belltech shocks
Rear suspension: Belltech 2-inch drop shackles, Belltech shocks
Brakes: R1 Concepts cross-drilled and slotted rotors

Wheels & Tires
Wheels: 22x10-inch Boss 313
Tires: Nitto 420S 305/40R22

Special Thanks: Rodney at RPM Transmissions for use of the shop and tools to make this project happen.
Autocross Time: 50.10 sec
Quarter-Mile Time: 11.87 @ 114.42 mph (Highest Trap Speed)
Speed Stop Time: DNF
Slalom Time: DNF
Shown 'n' Shine: No points earned