SBF 185cc Enforcer Cyl. Head 63cc As Cast Assem.

The SBF 185cc Enforcer Cylinder Head 63cc As Cast Assembly from Air Flow Research (MPN 1341) is a purpose-built Small Block Ford cylinder head engineered for high-flow induction and serious performance applications. This assembled unit delivers the flow characteristics and chamber design needed for engines targeting maximum power output in competition, hot rod, and high-performance street builds.

The 185cc intake port volume provides excellent flow characteristics for medium-displacement Small Block Ford engines, supporting both naturally aspirated and boosted platforms. The 63cc combustion chamber is cast in the as-delivered configuration, allowing builders the flexibility to cc and pocket the chamber to meet specific compression ratio targets. The 1.900-inch intake and 1.600-inch exhaust valves are sized to optimize flow velocity across a broad RPM band, while the 1.290-inch valve springs supply adequate seat pressure for high-lift, long-duration cam profiles. The angle-plug configuration supports modern ignition systems and allows optimized spark placement for efficient combustion in high-compression applications.

This head is the choice for engine builders constructing high-performance Small Block Ford mills where flow and chamber flexibility matter. It suits vintage muscle car restorations, hot rod projects, bracket racing engines, and street performance builds where peak horsepower and drivability are equally important. The aluminum construction reduces weight compared to cast iron heads, lowering the overall engine package mass while improving thermal management.

Air Flow Research has established a reputation for delivering cylinder heads with verified flow numbers and architectural designs that translate gains directly to dyno results. The SBF 185cc Enforcer is sold as a complete assembled unit, including valves, springs, and retainers, ready for installation or further machine work.