SBF 351C Performer RPM Cylinder Head - Assm.

The Edelbrock SBF 351C Performer RPM Cylinder Head is a fully assembled aluminum cylinder head engineered for Ford Cleveland and modified engine platforms requiring maximum airflow and combustion efficiency. This angle-plug design delivers the flow characteristics necessary for serious performance builds, combining proven Edelbrock engineering with specifications optimized for RPM-range power production.

The 351C Performer RPM features a 190 cc intake port volume paired with a 60 cc combustion chamber, intake valve diameter of 2.050 inches, and exhaust valve diameter of 1.600 inches. The 1.550-inch valve spring rate supports high-rpm valve control while maintaining reliable seating force across the power band. Aluminum construction reduces overall engine weight compared to iron alternatives, contributing to improved power-to-weight ratio without sacrificing durability. The angle-plug configuration optimizes spark plug positioning for efficient flame front propagation and consistent ignition timing across load conditions.

This assembled cylinder head is intended for builders and restorers working with Ford Cleveland and modified 351C platforms where stock head limitations restrict power development. The Performer RPM specification suits applications demanding improved mid-range and upper-rpm response without requiring full race-spec porting. Whether upgrading a street performance engine, off-road application, or restoration project where original heads are unavailable, this assembly arrives ready for installation, eliminating the need for separate valve train components or port work.

Edelbrock's Performer RPM line maintains a market position between stock and race heads, emphasizing reliability and real-world usability over extreme porting geometry. The 351C platform benefits from aftermarket cylinder head development that addresses the original design's breathing limitations, and this assembly represents a direct upgrade path for operators rebuilding or modifying Cleveland-based engines.