Center Main Caps - Ford 351C 4-Bolt- Flat Bottom

The Center Main Caps - Ford 351C 4-Bolt - Flat Bottom from PRO-GRAM ENGINEERING are precision billet steel engine components designed for high-performance Ford Cleveland and modified engine builds. These caps are essential for maintaining crankshaft alignment and structural integrity under high-stress conditions, making them ideal for performance enthusiasts and engine builders.

Manufactured from high-quality billet steel, these four-bolt main caps feature a flat bottom design that enhances strength compared to factory castings. This design helps prevent crankshaft deflection and ensures proper oil clearances, which is crucial for high-RPM operation and forced induction applications. The flat bottom geometry also minimizes stress concentration points, allowing for more controlled torque application during installation.

These center main caps are particularly beneficial for those building street or modified performance engines based on the Ford 351C platform. Each set includes three caps, engineered to meet or exceed OEM specifications, ensuring reliability and durability for aggressive engine builds. Engine builders and performance enthusiasts will find these caps essential for achieving consistent performance and longevity in their projects.