4.9" Bore Space DRCE II Chevy 12 Degree Racing Heads

• 12° Valve Angle
• Magnesium/Bronze valve guides reduce stem wear
• Oval 470cc Intake Ports
• DRCE II Bolt Pattern, 4.9" Bore Space
• 54cc As-Cast Combustion Chambers
• Made in the U.S.A.

The Pro-Filer 4.9" bore space cylinder head is modeled after a DRCE II Pro Stock head.

This cylinder head features As-Cast ports and chambers, Oval Intake Ports, DRCE II bolt pattern, four valley bolts and enough water flow to cool the most aggressive tune up.

We have redesigned the rocker area to take a flat one piece bar to assist in high RPM stability of the valve train.

So when you are ready to spread that bore spacing out a notch this is the head for you.

12 Degree DRCE II Style 4.9 Bore Space Head includes 470cc As Cast Ports and 54cc As-Cast Chambers.

Series P/N: 165-FB (QTY & OPTIONS ADDED TO BASE PRICE AT CHECKOUT)