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1968 Pontiac GTO - Shootout One Man

STRIP SPECS
Year/Model ’68 GTO
Race Weight With Driver 4,040 lbs
Curb Weight 3,840 lbs
Fuel Level When Weighed ¾-tank
Fuel 93-octane
Engine ’68 400 H.O.
Cubic Inches Before/After 400/406
Engine Built By Glasgo & Co. Akron, OH

Induction System
Air Cleaner Single-snorkel, K&N element
Carburetor Q-jet
Primary Jets 0.073-in
Primary Metering Rods 0.043-in
Secondary Metering Rods BE
Secondary Metering Rod Hanger H
Spacer Plate None
Intake Manifold Stock cast-iron dual-plane

Fuel System
Pump Stock AC
Lines Stock
Regulator None

Heads
Casting No. 16
Head Porting None
Flow Numbers N/A
Valves Manley Stainless, 2.11/1.77-in, three-angle valve job

Bottom End
Pistons Speed-Pro, forged, flat-top, 0.030-over
Rings Speed-Pro
Rods Early ’60s forged
Compression Ratio 101
Crankshaft Stock cast, 3.75-in stroke
Rotating Assembly Balanced Yes

Camshaft
Brand Bullet Cams
Duration at 0.050 212/225-deg
Duration Advertised 288/302-deg
Lift With Specified Rocker Arms 0.424/0.424-in
Lobe Separation Angle 110-deg
Installed Position Straight up
Rocker Arms Stamped steel, 1.51-ratio

Ignition
Distributor Stock with 32 oz ACCEL points
Amplifier None
Coil Stock canister-style
Wires Reproduction
Spark Plugs AC R44
Total Timing 36-deg
RPM that total timing is reached 2,000

Exhaust
Manifolds Stock H.O.
Exhaust Pipes 2.5-in
Mufflers Flowmaster
Crossover Dr. Gas cross-pipe

Drivetrain
Transmission M21
Clutch Centerforce
Shifter Stock Hurst
Rear GM 12-bolt posi
Rear Gear Ratio 3.731
Axles Stock GM 12-bolt

Chassis and Suspension
Brakes F/R Stock disc/drum
Wheels F/R Rally II 14x6
Tires F/R G70-14 Reproduction redlines
Tire Pressure F/R 42psi/40psi

Suspension Front
Springs Moog coil
Shocks Monroe
Control Arms Stock
Stabilizer Bar Stock 1-in
Other Features None
Suspension Rear
Springs Moog coil
Shocks Monroe
Stabilizer Bar None
Other Features Polyurethane bushings

The Rest
Chassis Mods None
Interior Mods None
Exterior Mods None
Safety Mods Scattershield
Paint Solar Red
Launch Technique 1,800 rpm, smooth transition into the throttle as the clutch is engaged
Best 1/4-mile E.T./MPH prior to event 13.36/106.2


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Related Photos

1968 Pontiac Gto Rear Left View 1968 Pontiac Gto Rear Left Side View
1968 Pontiac Gto Full Front View 1968 Pontiac Gto Engine Bay

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