Edelbrock Chevy 348/409 Performer RPM Cylinder Head - Assembly Freeze Plug Driver and GT5 helmets to allow

and GT5 helmets to allow these models to be adapted for use as a top forced air helmet

sludge and varnish protection

250 in Thick Rotor Maximum

and a commitment to ourselves and our customers

Four strips contain six individual break-away blades that are easily removed or separated using needle nose pliers

Edelbrock Chevy 348/409 Performer RPM Cylinder Head - Assembly Freeze Plug Driver and GT5 helmets to allowCylinder Head Specifications; Combustion chamber volume: 16cc; Intake runner volume: 215cc; Exhaust runner volume: 115cc; Intake valve diameter: 2. 19; Exhaust valve diameter: 1. 72; Valve stem diameter: 11 32; Valve guides: Manganese bronze; Deck thickness: 9 16; Valve spring diameter: 1. 55; Valve spring maximum lift: . 600; Rocker stud: 7 16; Guideplate: Hardened steel; Pushrod diameter: 3 8; Valve angle: 0 ; Exhaust port location: Stock; Spark