BAM ROLLER LIFTERS .904" CHRYSLER BB/HEMI/ O/C NO PUSHROD OILING STEEL DLC BUSHING B-2031-16BB1

BAM Roller Lifters was formed in 2009 with the aim of providing the highest quality lifters direct to the engine builder. All BAM Roller Lifters are 100% made in the USA, each set of lifters are hand assembled with the highest level of care and accuracy. Triple Alloy Steel Billet Lifter Bodies machined on state of the art CNC equipment.

• .904" Diameter – Optimized for BBM Top Alcohol Race Engines
• Specifically designed for Big Block Mopar (BBM) Top Alcohol applications with standard .904" lifter bores.
• Provides exceptional lifter stability and precise cam tracking under extreme RPM and valve spring loads.
• Built for the demands of professional drag racing environments.
• Configuration - O/C
• On Center, body design enables better pushrod alignment with raised port or wide rocker cylinder heads.
• Reduces side loading on the pushrod, improving valve motion and minimizing wear.
• Enhances valvetrain efficiency, particularly with high-lift camshafts and aggressive profiles.
• No Pushrod Oiling – Simplified, High-Strength Design
• Engineered without internal oiling passages, making it ideal for external oiling systems used in Top Alcohol engines.
• Eliminates potential oil passage failures and reduces internal complexity for maximum reliability.
• Perfect for dry sump or block-fed oil systems common in high-end drag racing builds.
• Steel DLC Bushing – Extreme Durability & Low Friction
• Features a solid steel bushing coated in Diamond-Like Carbon (DLC) for maximum wear resistance.
• Provides ultra-low friction operation, reducing heat and wear in high-load, high-RPM conditions.
• A superior alternative to needle bearings—eliminates bearing failure risk while supporting aggressive cam profiles.
• 0.300" Tall Lifter Body – Increased Stability and Strength
• Extended body length increases lifter-to-bore engagement, reducing deflection and improving valvetrain control.
• Enhances durability during rapid valve events and high-RPM conditions common in drag racing.
• CNC-Machined Billet Steel Construction – Race-Proven Toughness
• Crafted from premium heat-treated billet steel for superior strength and longevity.
• CNC-machined to exact tolerances for precision fitment and consistent performance.
• Designed to handle extreme cylinder pressures and spring loads found in Top Alcohol engines.
• Top Alcohol Race Ready – Built to Win
• Developed specifically for Top Alcohol and other high-horsepower drag racing categories.
• Trusted by top-tier race teams for its bulletproof reliability and performance consistency.
• Designed for zero-failure performance when fractions of a second make the difference.

Applications:

• Ideal for Big Block Mopar (BBM) Top Alcohol race engines using offset lifter configurations.
• Built for use without pushrod oiling, and perfectly suited for external or block oiling systems.
• Designed to withstand the most aggressive camshafts, spring pressures, and RPM levels in drag racing.
• A top choice for NHRA Top Alcohol, Pro Mod, and high-horsepower Mopar builds.

Conquer the strip with BAM .904" Roller Lifters — Steel DLC Bushings, offset design, and zero-compromise durability for your Top Alcohol BBM powerhouse!