Edelbrock Performer RPM Cylinder Head - Chamber Size: 72cc 121002 3-1/4 in ID

3-1/4 in ID

The Stilo ST5 FN Zero helmet offers the pinnacle of formula racing helmets

For AFCO 19

these Lash Caps fit valve stems well and are easily removed

Edelbrock Performer RPM Cylinder Head - Chamber Size: 72cc 121002 3-1/4 in IDCylinder Head Specifications:; Combustion chamber volume: 87cc; Intake runner volume: 215cc; Exhaust runner volume: 175cc; Intake valve diameter: 2. 11"; Exhaust valve diameter: 1. 66"; Valve stem diameter: 11 32"; Valve guides: Manganese bronze; Deck thickness: 5 8"; Valve spring diameter: 1. 46"; Valve spring maximum lift: . 575"; Rocker stud: 7 16"; Guideplate: Hardened steel; Pushrod diameter: 5 16"; Valve angle: 14 ; Exhaust port location: Stock