Speedmaster Mopar Chrysler BB 440 Crossbolted Billet Steel Main Caps (Set of 5) PCE289.1020

The Speedmaster PCE289.1020 is a premium replacement main cap set designed for Mopar Chrysler big-block 440 engines. This five-piece set features crossbolted billet steel construction, delivering the strength and precision needed for high-performance engine builds and rebuilds. The billet steel material provides superior durability and dimensional accuracy compared to standard cast alternatives, making these caps ideal for street engines, drag racing applications, and serious engine restorations where reliability and performance are paramount.

These replacement main caps are engineered for direct fitment on BB 440 Chrysler engines, ensuring proper alignment and sealing during engine assembly. The crossbolted design reinforces cap integrity under load, reducing the risk of cap lift and improving overall engine stability. Whether you're rebuilding a classic muscle car engine or upgrading an existing 440 block, these precision-manufactured caps provide the foundation for dependable performance and longevity.

Key Features & Benefits

• Billet Steel Construction: Premium billet steel material offers superior strength and dimensional accuracy for reliable engine performance.
• Crossbolted Design: Reinforced cap structure resists lifting and improves engine block stability under load.
• BB 440 Fitment: Direct replacement set designed specifically for Mopar Chrysler big-block 440 engines.
• Complete Five-Piece Set: Includes all five main caps needed for a complete engine rebuild or restoration.
• High-Performance Ready: Engineered for engine builds ranging from street applications to drag racing.

Specifications

Ideal Applications

• Engine rebuilds and restoration projects for classic Mopar 440 big-block engines
• High-performance street engine builds and upgrades
• Drag racing and competition engine assemblies
• Factory replacement for worn or damaged 440 main caps