Edelbrock Performer RPM Cylinder Head - Assembled - 2.090 / 1.660 in Valve - 170 cc Intake - 72 cc Chamber - 1.550 in Springs - Ford FE-Series 60069 PD135K The Mobil 1 technology is

The Mobil 1 technology is race proven and the choice of NASCAR

Full sweep provides increased accuracy

1975-2002 Chevrolet P30

fire resistant cover

High Quality Zinc-Plated U-Bolts

Edelbrock Performer RPM Cylinder Head - Assembled - 2.090 / 1.660 in Valve - 170 cc Intake - 72 cc Chamber - 1.550 in Springs - Ford FE-Series 60069 PD135K The Mobil 1 technology isCylinder Head Specifications: Combustion chamber volume: 72cc 76cc; 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"; Pushrod diameter: 3 8"; Valve angle: 13 ; Exhaust port location: Stock; Spark plug fitment: 14mm x 3 4 reach, gasket