BBM Billet Double Roller Timing Set

The JP PERFORMANCE BBM Billet Double Roller Timing Set (part number JP5606T-LB05) is a precision-engineered timing chain assembly designed for Mopar B and RB-series engine platforms. This billet steel construction combines the durability of keyway-adjustable design with double roller chain technology, delivering the reliable valve timing precision required for high-performance and custom engine builds where stock timing geometry requires modification or reinforcement.

The timing set features a 3-bolt mounting configuration and incorporates needle bearing support, reducing friction and wear on the timing chain under sustained engine load. The 0.005-inch shorter pitch specification allows builders to fine-tune crankshaft-to-camshaft timing relationships, critical when combining aftermarket cranks, cams, or cylinder heads with non-stock deck heights. The billet steel construction resists the fatigue cracking common in cast iron sprockets, particularly in naturally aspirated or supercharged applications where peak cylinder pressures exceed OEM specifications.

This timing set serves engine builders, restoration specialists, and performance enthusiasts working with vintage and modern Mopar B-block (318, 340, 360 ci) and RB-block (383, 400, 440 ci) engines. It is particularly suited for applications where original timing cover geometry is retained but improved durability or timing adjustability is needed. The keyway-adjustable feature allows precise camshaft phasing without requiring index timing cover modifications, making it valuable for dyno tuning and performance optimization.

Mopar timing sets are foundational engine components—improper selection leads to valve overlap issues, horsepower loss, or catastrophic failure. JP PERFORMANCE's billet roller design is recognized among serious Mopar builders as a no-compromise option when stock assemblies cannot meet the demands of modified displacement, compression, or boost applications.