BAM Roller Lifters .904" – Chrysler Big Block, Indy Aluminum, 1.89" Pushrod Seat, O/C, Pushrod Oiling, Steel DLC Bushing

Key Features:

• .904" Diameter – Engineered for Chrysler Big Block Engines
• Built to fit Chrysler BB V8s (383, 400, 426, 440 CID) with Indy aluminum blocks or heads.
• Ensures tight bore engagement, improving lifter stability, tracking, and durability under extreme load.
• Perfect for high-performance street, strip, and competition engines.
• 1.89" Pushrod Seat Height
• Ideal for setups requiring a lower seat height to accommodate shorter pushrods and tight valvetrain geometry.
• Ensures accurate rocker geometry and pushrod alignment with Indy head and custom valvetrain layouts.
• Promotes clean valve motion and improved efficiency across the RPM range.
• Configuration - O/C
• On Center, Reduces pushrod side loading, increasing valvetrain efficiency and component longevity.
• Enhances valve timing accuracy under high RPM and extreme pressure.
• Pushrod Oiling System:
• Directs pressurized oil through the pushrod to lubricate upper valvetrain components.
• Critical for high-RPM valvetrain durability and maintaining top-end lubrication with aftermarket rocker systems.
• Reduces wear, improves component life, and ensures stable lubrication under severe operating conditions.
• Steel DLC (Diamond-Like Carbon) Bushing:
• Offers ultra-low friction, excellent wear resistance, and extreme pressure tolerance.
• Eliminates the risks associated with needle bearings—no bearing failure under stress.
• Ideal for high-lift camshafts, aggressive valve springs, and extended high-RPM use.
• Improves oil retention and heat resistance, ensuring long-term reliability.
• 0.300" Tall Body Design:
• Enhances lifter-to-bore contact area, providing increased rigidity and stability.
• Reduces deflection and maintains consistent cam-to-lifter engagement for precise timing.
• CNC-Machined from Premium Billet Steel:
• Machined to tight tolerances for smooth travel and consistent lifter function.
• Built to withstand high spring loads, elevated temperatures, and intense race conditions.
• Optimized for High-Lift Camshafts:
• Works perfectly with modern high-lift and fast-ramp cam profiles.
• Minimizes wear and enhances valvetrain control at peak performance.
• Race-Proven Reliability:
• Extensively tested in drag racing, endurance, and high-horsepower Chrysler builds.
• Delivers dependable operation in extreme RPM, heat, and load environments.
• Superior Oil Flow & Pressure Stability:
• Promotes even oil distribution throughout the lifter and cam interface.
• Helps maintain stable oil pressure and cooling during sustained high-speed operation.

Applications:

• Compatible with Chrysler BB engines (383–440 CID) using Indy aluminum blocks and heads.
• Designed for builds requiring 1.89" pushrod seat height, offset lifter geometry, and pushrod oiling.
• Perfect for use with high-lift cams, race or high-performance street engines, and endurance applications.

Push your Chrysler Big Block to the limit with BAM .904" Roller Lifters—featuring Offset Design, 1.89" Seat, Pushrod Oiling, and Steel DLC Bushings for unbeatable strength, control, and performance!