Edelbrock E-Street Cylinder Head - SB Chevyw/ 70cc. Combustion Chamber 4087ADURD The alloys used in the

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Edelbrock E-Street Cylinder Head - SB Chevyw/ 70cc. Combustion Chamber 4087ADURD The alloys used in theCylinder Head Specifications: Combustion chamber volume: 70cc 64cc; Intake runner volume: 185cc; Exhaust runner volume: 60cc; 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. 460"; Valve spring maximum lift: . 550"; Rocker stud: 3 8" with guide plate; Guideplate: Hardened steel; Pushrod diameter: 5 16"; Valve angle: 23 ; Exhaust