Description
Valve shim wear directly impacts your engine’s valve clearance, timing precision, and overall performance—making regular shim replacement critical for serious racers and high-revving builds. PROX Valve Shims deliver OEM-equivalent precision at a fraction of the cost, allowing you to maintain exact tolerances without the premium price tag. With proprietary heat-treatment and CNC precision machining, these shims resist wear longer while staying affordable enough to replace as part of routine maintenance.
- 5-pack quantity
- MPN: 29.748235
- Precision CNC-machined
- Heat-treated hardness
- OEM-equivalent performance
- Reduced wear rate
- Exact size tolerance
- Budget-friendly alternative
- Easy bolt-on replacement









