By The Numbers

1971 Dodge Challenger

Curt Ukasik, 39 • Coraopolis, PA

Engine

Type: Chrysler late-model Gen III Hemi

Block: factory 6.1L bored to 4.090 inches

Oiling: Melling pump, custom windage tray, stock pan

Rotating assembly: Compstar 4.050-inch forged steel crank and rods; Mahle 11.0:1 pistons

Cylinder heads: factory aluminum castings with 2.08-/1.60-inch valves ported to flow 370 cfm

Camshaft: custom COMP Cams 230/234-at-.050 hydraulic roller; .547/.563-inch lift;114-degree LSA

Valvetrain: Manley beehive valvesprings, retainers, and locks; stock lifters and rockers

Induction: Indy Mod Man dual-quad intake manifold, dual FAST 4150-style throttle bodies

EFI: FAST XFI stand-alone engine management system

Ignition: FAST XIM

Fuel system: custom Rick’s Hot Rod Shop tank, FAST 42-lb/hr injectors; Aeromotive pump and pressure regulator

Exhaust: TTI 1.75-inch headers, custom X-pipe, dual 2.5-inch Flowmaster mufflers

Output: 505 hp

Built by: Indy Cylinder Head

Drivetrain

Transmission: Tremec TKO 500 five-speed manual, Centerforce twin-disc clutch

Rear axle: Roadster Shop 9-inch rearend with 35-spline halfshafts, 3.89:1 gears, limited-slip differential

Chassis

Front suspension: Roadster Shop Fast Track front clip with custom upper and lower A-arms, splined sway bar; C6 Corvette spindles and hubs; RideTech coilovers

Rear suspension: Roadster Shop IRS with custom cradle, upper and lower A-arms, splined sway bar; C6 Corvette spindles and hubs; RideTech coilovers

Brakes: Baer 14-inch rotors with 6-piston calipers, front and rear

Wheels & Tires

Wheels: Billet Specialties Vintec 19x9.5, front; 20x12, rear

Tires: Michelin Pilot Sport 275/30R19, front; 345/30R20, rear