Edelbrock Performer RPM Cylinder Head - Assembled - 2.090 / 1.660 in Valve - 170 cc Intake - 76 cc Chamber - 1.550 in Springs - Ford FE-Series 60079 4053 calibrated to

calibrated to

OD4-1Cltr7in

2010-2011 GMC Sierra 1500

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Edelbrock Performer RPM Cylinder Head - Assembled - 2.090 / 1.660 in Valve - 170 cc Intake - 76 cc Chamber - 1.550 in Springs - Ford FE-Series 60079 4053 calibrated toCylinder 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