BAM Roller Lifters .904" – Chrysler R3 48° Block, 1.56" Lifter Bore, 2.03" Pushrod Seat (Ritter)

Key Features:

• .904" Diameter – Designed for Chrysler R3 Race Blocks
• Precision-engineered for Chrysler R3 48° lifter angle race blocks, including Ritter-based engine configurations.
• Ensures accurate lifter-to-camshaft tracking, even under extreme RPM and spring pressures.
• Built for high-output racing engines, drag racing, circle track, and pro-level Mopar builds.
• 1.56" Oversized Lifter Bore Fitment
• Specifically designed to fit 1.56" lifter bore diameters, common in R3/Ritter blocks.
• Provides maximum contact surface between the lifter and bore for stability and strength.
• Reduces lifter deflection, improving valvetrain accuracy and longevity.
• 48° Lifter Angle Compatibility
• Built to match Chrysler’s 48° lifter bore geometry, which improves valvetrain efficiency and reduced pushrod angles.
• Allows for higher RPM operation with improved valve control and reduced side loading.
• 2.03" Pushrod Seat Height – Optimized for High-Port Cylinder Heads
• Features a 2.03" pushrod seat height to accommodate tall-deck or high-port head configurations.
• Supports correct rocker geometry and maintains optimal pushrod angle for aggressive cam profiles.
• Ideal for Ritter and Indy head setups with custom valvetrain components.
• Configuration  - O/C
• On Center, Designed for optimal valvetrain alignment in high-performance builds.
• Enhances pushrod clearance and supports improved valvetrain geometry and durability.
• CNC-Machined Billet Steel Body
• Precision-machined from high-strength billet steel for superior wear resistance and longevity.
• Built to handle high spring pressures and aggressive cam profiles used in modern race builds.
• Tight machining tolerances ensure smooth, consistent lifter operation.
• 0.300" Tall Body Design – Enhanced Engagement
• Increases lifter-to-bore contact area, minimizing deflection and lifter walk.
• Ensures stable camshaft tracking at high RPM and during valve float-prone conditions.
• Compatible with High-Lift and Fast-Ramp Camshafts
• Ideal for aggressive camshaft profiles, delivering smooth lifter travel and accurate valve motion.
• Supports improved power delivery, throttle response, and valvetrain longevity.
• Race-Tested & Proven Performance
• Trusted in NHRA, dirt late model, and circle track racing engines.
• Built to withstand extreme heat, RPM, and load without performance loss.
• Lubrication-Optimized Design
• Promotes efficient oil flow to critical lifter components and through pushrod oiling setups.
• Helps maintain stable oil pressure, minimize wear, and extend component life.

Applications:

• Designed for Chrysler R3 48° blocks with 1.56" lifter bores and Ritter-based architecture.
• Compatible with 2.03" pushrod seat heads, high-lift cams, and offset rocker configurations.
• Ideal for elite-level Mopar race engines in drag racing, oval track, and high-performance competition engines.

Take your Chrysler R3 engine to the next level with BAM .904" Roller Lifters—engineered for 48° lifter angles, 1.56" bores, and 2.03" seat height for pro-grade performance and valvetrain control!