Match Race 1972 ~ 'Road Runner/GTX 440' vs. 'Buick GS 455'
From the 'Stage1' Expert
'Stage 1' Components
* Larger Dual Exhaust System
* Re-curved Distributor w/Quicker Advance
* Camshaft 'Hydraulic' = .490"/.490" Lift ~ 316*/340* Duration ~ 90* Overlap ~ 113* Center-Line
* Cylinder Heads #1231786 {Mildly Ported from the Factory}
* Combustion Chamber = {Factory 71.0 CC's} {Minimum 59.0 CC's}
* Valves = 2.130" Intake ~ 1.755" Exhaust
* Valve Springs {Single Coil w/Damper} = #125 lbs. Valve-Closed ~ #272 lbs. Valve-Open
* Tubular Push-Rods
* Low Tension Piston Rings
* Chromed Piston Pins
* Fully Grooved Main Bearings {.0011" to .0015" Clearance}
* Special +.001" Over-Sized Rod Bearings {.002" to .0025" Clearance"}
* 60 Lb. High-Pressure Oil Pump
* 7-Blade Fan Blade
* Cast Iron Intake Manifold
* Blocked Heat Riser Intake Manifold Gasket
* Rochester 800 CFM Carburetor {Factory Calibrated with 6% Richer Metering-Rods}
* High-Pressure Fuel Pump {4.5 PSI @ Carburetor}
* 10-Bolt Rear-End
* Posi-Traction Differential
* 3.42 Gears {Performance Axle}
* Heavy-Duty TH-400 Transmission {w/6-Plate Clutch-Pack, 2.48 1st-Gear and Heavy-Duty Servo}
* Direct Ram-Air Induction {Twin Scoops}
* Special Dual-Inlet Air Cleaner
* Grade 'A' Select Internal Components
* Dynamically Balanced Engine
From the 'Stage1' Expert
'Stage 1' Components
* Larger Dual Exhaust System
* Re-curved Distributor w/Quicker Advance
* Camshaft 'Hydraulic' = .490"/.490" Lift ~ 316*/340* Duration ~ 90* Overlap ~ 113* Center-Line
* Cylinder Heads #1231786 {Mildly Ported from the Factory}
* Combustion Chamber = {Factory 71.0 CC's} {Minimum 59.0 CC's}
* Valves = 2.130" Intake ~ 1.755" Exhaust
* Valve Springs {Single Coil w/Damper} = #125 lbs. Valve-Closed ~ #272 lbs. Valve-Open
* Tubular Push-Rods
* Low Tension Piston Rings
* Chromed Piston Pins
* Fully Grooved Main Bearings {.0011" to .0015" Clearance}
* Special +.001" Over-Sized Rod Bearings {.002" to .0025" Clearance"}
* 60 Lb. High-Pressure Oil Pump
* 7-Blade Fan Blade
* Cast Iron Intake Manifold
* Blocked Heat Riser Intake Manifold Gasket
* Rochester 800 CFM Carburetor {Factory Calibrated with 6% Richer Metering-Rods}
* High-Pressure Fuel Pump {4.5 PSI @ Carburetor}
* 10-Bolt Rear-End
* Posi-Traction Differential
* 3.42 Gears {Performance Axle}
* Heavy-Duty TH-400 Transmission {w/6-Plate Clutch-Pack, 2.48 1st-Gear and Heavy-Duty Servo}
* Direct Ram-Air Induction {Twin Scoops}
* Special Dual-Inlet Air Cleaner
* Grade 'A' Select Internal Components
* Dynamically Balanced Engine
