Description
Valve shim wear is one of the most common causes of performance loss and engine noise in high-revving applications. The PROX Valve Shim Kit 29.VSA890 delivers precision-engineered replacements that restore your engine’s valvetrain accuracy without the expense of full OEM service kits. Whether you’re fine-tuning clearances on a built motor or refreshing tired shims on a track engine, these replacements offer durability and cost-effectiveness that standard components simply can’t match.
- Precision-machined tolerances
- Heat-treated hardness rating
- Reduced valve clearance wear
- Bolt-on replacement
- Fraction of OEM cost
- MPN: 29.VSA890
- Multiple size options available









