Edelbrock Pro Port Big Victor Big Block Chevy 12-Degree Cylinder Head CNC Ported Bare Single

"The Edelbrock 618269 Big Block Chevy 12° Pro-Port Cylinder head is designed specifically for the professional cylinder head porter and engine builder. Like all other Edelbrock Cylinder heads, Pro-Port cylinder heads are also cast in the USA at the state-of-the-art Edelbrock Foundry with extra-thick walls to allow for custom CNC porting. In most cases, seats and manganese-bronze valve guides are included, but not installed. Please note: These heads can not be used without professional head preparation. Pro-Port RAW Features Include: - Unported versions of Edelbrock race-winning Victor Series CNC heads for the professional cylinder head porter and engine builder - Pro-Port cylinder heads are cast in the USA at the state-of-the-art Edelbrock Foundry with extra-thick walls to allow for custom CNC porting - The only heads designed specifically to accommodate almost any CNC port shape, size or location - Offers enough wall thickness for CNC machining to various port dimensions - In most cases seats and manganese-bronze valve guides are included - Some Edelbrock Pro-Port Raw Heads Feature Our Special Hot Isostatic Pressing or HIP Process. "

Installation Notes    

    Many other combinations of valve sizes are possible but obviously will require custom made valves. Pistons for most 12° and 11° heads are likely compatible but should be carefully checked for piston to valve clearance before use.

CNC Ported    No
Deck Height    9.8 in
Guide Plates Included    No
Material    Aluminum
Valve Angle    12 deg