.047 Spacers - SBM R/A Shaft (4pk)

The .047 Spacers – SBM R/A Shaft from SHARP ROCKERS are precision-engineered components designed for engine builders and high-performance mechanics focused on achieving exact valve train geometry control. These spacers are particularly useful for tuning solid roller or adjustable rocker arm assemblies, allowing for precise pushrod geometry adjustments and minimizing unwanted deflection during high-performance cam profiles.

Crafted from hardened steel, each spacer measures 0.047 inches thick and is intended for use with SBM (Small Block Modified) R/A shaft rocker assemblies. They are positioned between the rocker arm body and the shaft to fine-tune valve lash and control rocker wear geometry. The spacers are lightweight, ensuring minimal inertial load while maintaining structural integrity under high RPM conditions.

These spacers are ideal for engine builders working on stroker builds, solid roller conversions, and high-lift/high-duration cam swaps where factory rocker geometry may not align correctly with the intake and exhaust valves. A 4-pack provides ample coverage for a complete V8 engine build or serves as replacements across various rocker applications, making them a valuable addition to any performance engine project.