Pro-Filer Air Strike 12 Degree SBC Cylinder Heads

The Air Strike Cylinder Head is the latest technology for your SBC. The Air Strike 12° SBC head is for the standard bore spacing and features symmetrical ports, splayed valves and a stable rocker bar platform.

· 12 Degree Valve Angle
· 370cc Oval Intake Port
· 44cc Heart Shaped Combustion Chamber
· Up to 2.260 Intake & 1.600 Exhaust Valves
· Accepts up to 1.650 O.D. Springs
· Made in the U.S.A.
Race Winning Performance out of the box...
Air Strike 12 Degree SBC Racing Cylinder Heads
Material: Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle: 12 Degree
Intake Port Volume and Shape: 370cc, Oval-Shaped, PRECISION As-Cast (NOTE: smaller port coming soon)
Combustion Chamber: Heart-Shaped, As-Cast 44cc
Valve Spring Pocket: Maximum of 1.650 (no deeper) Exhaust Valve: 1.600"
Intake Valve: 2.230"-2.260"
Deck Thickness: 1/2" deck
Spark Plugs: Uses Gasketed 3/4" Reach Plugs such as NGK R5671-7 Series
Valve Seats: Copper Alloy
Valve Guides: Manganese Bronze to assist in extending valve life
Milling: .0050 per cc flat milling
Engine Size Recommendation:420" & Larger
Application: High Performance Drag Racing
Note: This is a racing cylinder head