Michael Johnson
Technical Editor
September 7, 2017

Justin Young is the mastermind behind Mod Motor Mustangs, and as such, his 2013 Shelby GT500 is one bad ride. Since purchasing the car, Justin’s GT500 has gone through a transformation taking it from stock to wicked fast. When putting together this list, we knew Justin needed to be a part of the festivities. Thankfully, he was down to compete.

Justin’s GT500 features a 5.8 aluminum block with Darton sleeves, a double-keyed GT500/Cobra Jet crank, Manley pistons (10.2:1 compression ratio), I-beam rods, stock heads, Comp custom cams, and Accufab billet oil pump gears and timing chains. The car still has the factory TVS 2.3L Supercharger, but it’s been augmented with a Power by the Hour XBA inlet, a 168mm throttle-body, a 1320 Junkie Performance 149mm intake tube, and a PMAS 149mm mass air.

The engine in Justin’s GT500 may look relatively stock, but it’s actually far from it. Most of the mods you can’t see, but Justin’s GT500 will be close to the four-digit mark on Pro Dyno’s portable dyno.

The engine in Justin’s GT500 may look relatively stock, but it’s actually far from it. Most of the mods you can’t see, but Justin’s GT500 will be close to the four-digit mark on Pro Dyno’s portable dyno. Justin’s GT500 still has the stock TR6060 Transmission, but the rest of the drivetrain is bolstered with a Centerforce DYAD clutch, an Eaton Truetrac differential, and an Aerospace Components street brake system. Built for half-mile and standing mile racing, Justin’s GT500 boasts a long-legged 2.73 rear gear, Weld Alumastar 17 x 4 ½ up front, Weld RTS 15 x 10 beadlocks wearing Mickey Thompson drag radials out back, a Simpson parachute, and a Team Z Motorsports rear suspension with Viking adjustable shocks.

We look forward to seeing Justin’s GT500 on the dyno, and we bet you feel the same.