Edelbrock Performer RPM Cylinder Head - Assembled - 2.020 / 1.600 in Valve - 185 cc Intake - 70 cc Chamber - 1.460 in Springs - Straight Plug 110012 Throttle Body Recommendations: Factory OEM

Throttle Body Recommendations: Factory OEM or aftermarket

1965-1990 Buick Electra

provide maximum downforce

1999-2002 GMC Sierra 1500

Ford: F-250 Super Duty 2005-2010

Edelbrock Performer RPM Cylinder Head - Assembled - 2.020 / 1.600 in Valve - 185 cc Intake - 70 cc Chamber - 1.460 in Springs - Straight Plug 110012 Throttle Body Recommendations: Factory OEMCylinder Head Specifications: Combustion chamber volume: 65cc 70cc; Intake runner volume: 185cc & 195cc; Exhaust runner volume: 65cc; Intake valve diameter: 2. 02"; Exhaust valve diameter: 1. 60"; Valve stem diameter: 11 32"; Valve guides: Manganese Bronze; Deck thickness: 9 16"; Valve spring diameter: 1. 46"; Valve spring maximum lift: . 575"; Rocker stud: 3 8"; Guideplate: Hardened steel; Pushrod diameter: 5 16"; Valve angle: 23 ; Exhaust port