By The Numbers
John Wargo * Flanagan, IL
'68 Pontiac Firebird * Total cost to build $39,000
| ENGINE |
| Type: | Crate 502ci big-block Chevy |
| Block: | GM 4.466-inch bore Gen VI Iron |
| Oiling: | GM 6qt pan |
| Crank: | GM 4.000-inch forged steel |
| Rods: | GM forged steel |
| Pistons: | GM 8.75:1 forged aluminum |
| Cylinder Heads: | GM cast-iron rectangle ports; |
| 2.19/1.88-inch valves; 118cc chambers |
| Camshaft: | GM 211/230-at-0.050 hydraulic roller; .510/.540-inch lift |
| Induction: | GM dual-plane manifold, Holley 750-cfm carb |
| Exhaust: | Kooks 1 7/8-inch headers; 3-inch collectors and mufflers |
| Output: | 465 hp and 565 lb-ft |
| Built By: | GMPP |
| DRIVETRAIN |
| Transmission: | Bowler Performance TH400; Holley trans cooler; |
| Hurst shifter |
| Rear Axle: | Ford 9-inch, 4.56:1 gears, |
| Detroit Locker diff |
| CHASSIS |
| Frame: | Stock with custom 12-point roll cage |
| Front Suspension: | Custom Firestone airbags; Monroe shocks |
| Rear Suspension: | Custom four-link, QA1 coilovers |
| Brakes: | Wilwood 13-inch rotors |
| with six-piston calipers front and rear |
| WHEELS & TIRES |
| Wheels: | American Racing Torq-Thrust II 17x7.5, front; 20x10.5, rear |
| Tires: | BFGoodrich 225/45-17, front; 305/50-20, rear |