Ferrea Lifter Shim Kit for BMW B58 Engines
The Ferrea Racing Lifter Shim Kit is engineered to optimize valvetrain stability for BMW B58 engines, delivering consistent, smooth performance at high RPMs and under demanding conditions. These precision shims are designed to fit under factory hydraulic lifters, reducing travel to help eliminate valve float and improve throttle response. Whether you’re dialing in a high-boost street car or prepping for competitive motorsport, this kit provides the reinforcement your B58 needs to perform at its peak.
Stop Valve Float and Protect Your Engine
Valve float—when valves fail to close properly at high RPM—can cause power loss and lead to serious engine wear. Ferrea’s shims restore ideal lifter clearance, ensuring valves operate with precision even under heavy load. This keeps your B58 engine running cleanly and safely during aggressive acceleration, hard pulls, and track use.
Engineered for High-Performance B58 Builds
The turbocharged B58 demands exact valve timing to handle higher boost and increased output. Ferrea’s lifter shims minimize lifter noise, improve valve control, and support smooth, efficient power delivery throughout the rev range. Whether your build includes upgraded camshafts or a tuned high-RPM setup, these shims provide the stability needed for street performance, drag racing, or track days.
Built for drivers who expect strength and dependability, the Ferrea Lifter Shim Kit is a proven upgrade for serious B58 builds. Reinforce your valvetrain and keep your engine sharp, responsive, and reliable—no matter how hard you push it.
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Fits BMW B58-equipped models, including M240i, 340i, 440i, 540i, Z4 M40i, and Toyota GR Supra (A90)