Ford FE for 390-428 Cobra Jet, 72cc combustion chambers

ED60069

60069

Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads give great torque and horsepower up to 6500 rpm. Direct bolt-on heads for 1961-76 390-427-428 Fords. 428 Cobra Jet-sized valves promote excellent flow for streetable power. Combustion chamber volume: 72cc Intake runner volume: 170cc Exhaust runner volume: 125cc Intake valve diameter: 2.09" Exhaust valve diameter: 1.66" Valve stem diameter: 3/8" Valve guides: Manganese bronze Deck thickness: 5/8" Valve spring diameter: 1.55" Valve spring maximum lift:.600" ng>Rocker stud: N/A Guide plate: N/A Pushrod diameter: 3/8" Valve Angle: 13° Exhaust port location: Stock Spark plug fitment: 14mm x 3/4" reach, gasket seat Made In: USA