Strip Specs
Year/Model: '68 GTO Ram Air
Race Weight With Driver: 3,750 lbs
Curb Weight: 3,560 lbs
Fuel Level When Weighed: 7 gallons
Fuel: 112-octane/93-octane mix
Engine: '68 code XS 400 R/A
Cubic Inches Before/After: 400/406
Engine Built By: Collier Machine, assembled by Barr's Performance
Induction System
Air Cleaner: K&N Ram Air
Carburetor: Original Q-jet
Jets: 0.073 primary
Secondary Metering Rods: BE
Spacer Plate: None
Intake Manifold: '69 Pontiac R/A-IV
Fuel System
Pump: Stock mechanical augmented by Holley electric, 200-gph
Regulator: None
Heads
Casting: '69 No. 722
Head Porting: Champion Head Service
Flow Numbers: N/A
Valves: Ferrea 2.11/1.77-in, stainless steel
Bottom End
Pistons: J&E forged-aluminum, flat-top, 4.155-in
Rings: Total Seal file-to-fit, 1/16, 1/16, 3/16
Rods: Oliver billet-steel, 6.800-in
Compression Ratio: 11:01
Crankshaft: Moldex billet-steel, 3.75-in stroke
Rotating Assembly Balanced: Yes
Camshaft
Brand: Crane hydraulic-roller
Duration at 0.050: 242/252-deg
Duration Advertised: 304/318-deg
Lift With Specified Rocker Arms: 0.558/0.558-in
Lobe Separation Angle: N/A
Installed Position: Straight up
Rocker Arms: Crane 1.5:1, roller
Ignition
Distributor: MSD Billet
Amplifier: MSD 6AL
Coil: MSD Blaster II
Wires: Taylor 7mm
Spark Plugs: NGK TK
Total Timing: 36-deg
RPM that Total Timing is Reached: 2,500
Exhaust
Headers: Hooker Super Comp
Primaries: 2.00-in
Collectors: 3.50-in
Exhaust Pipes: 2.50-in
Mufflers: Flowmaster
Crossover: Dr. Gas x-type pipe
Drivetrain
Transmission: Richmond Super T10 four-speed
Clutch: RAM 11-in
Shifter: Hurst Super Shifter
Rear: Pontiac 12-bolt ('70 GTO 455)
Rear Gear Ratio: 4.33:1
Posi: Richmond
Axles: Moser 32-spline
Chassis and Suspension
Brakes F/R: '68 Stock disc, stock drum
Wheels F/R: 15x6 Cragar / 15x8 Cragar
Tires F/R: BFG 215/65R15 / M/T ET Drag 28x9x15
Tire Pressure F/R: 35 psi/14 psi
Suspension Front
Springs: Stock
Control Arms: Stock
Stabilizer Bar: 1.125-in ('71 Judge)
Shocks: Stock replacement
Other Features: None
Suspension Rear
Springs: Moroso
Shocks: Monroe 50/50, non-adjustable
Stabilizer Bar: None
Control Arms: Edelbrock adjustable upper, Hotchkis lower, boxed
Other Features: Airlift airbags 6 psi (l), 14 psi (r)
Chassis Mods: None
The Rest
Interior Mods: Auto Meter gauges
Exterior Mods: None
Safety Mods: Fire extinguisher
Color: Verdoro Green
Launch Technique: Launch at 2,000
Best 1/8-mile E.T./MPH prior to event: 7.59/93 mph
Best 1/4-mile E.T./MPH prior to event: 11.75/116 mph (identical combo, 2004)