SKU: HRC720555-12
MPN: 720555-12
The BBM Hydraulic Roller Camshaft (Part No. 720555-12) from Howards Racing Components is a retrofit-grade performance camshaft engineered for Mopar B and RB-series engines. This hydraulic roller camshaft delivers 0.520-inch and 0.530-inch valve lift across dual profiles, with a 282/288-degree duration specification and 112-degree lobe separation angle, optimized for street and moderate performance applications operating between 2000 and 6200 RPM.
The dual-lift design and hydraulic roller actuators provide smooth, consistent valve actuation while reducing wear on valvetrain components compared to solid-lifter designs. The 282/288-degree duration split and 112 LSA (lobe separation angle) balance mid-range responsiveness with operational efficiency across the broad 2000–6200 RPM power band. Hydraulic roller technology eliminates the need for valve lash adjustment, simplifying tuning and maintenance for Mopar B and RB engine builds. This camshaft is a direct retrofit for engines using hydraulic roller lifter systems, maintaining original engine architecture while upgrading valve timing and lift characteristics.
This camshaft is designed for engine builders and restorers upgrading classic Mopar B and RB-series platforms without requiring extensive block modification. The specification supports street performance builds, restoration projects seeking modern valvetrain reliability, and applications where sustained daily-use operation and ease of maintenance are priorities. Weighting 10.05 pounds and measuring 24 inches in length, installation requires standard camshaft tools and proper timing verification per manufacturer specifications.
Mopar B and RB-series engines remain foundational to classic American muscle car and truck platforms. Howards Racing Components specializes in OEM-compatible and upgrade camshaft solutions for these engine families, with the 720555-12 representing a moderate performance tier suitable for builds prioritizing reliability and drivability over maximum output. Verify lifter compatibility and valve geometry clearance before installation to ensure proper fitment in your specific engine platform.
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