Brian Crower Valve Guide Sets for Mitsubishi 4G63/Evo 6.6mm Exhaust (8)

Brian Crower Valve Guide Sets for Mitsubishi 4G63 / Evo — 6.6mm Exhaust (Set of 8) Precision-engineered valve guides from Brian Crower designed specifically for the Mitsubishi 4G63 and Evo series. This set includes 8 exhaust valve guides sized at 6.6mm to ensure correct valve stem fitment and reliable sealing under high-performance conditions. Key Features Exact fit: Direct replacement for Mitsubishi 4G63 / Evo exhaust ports. 6.6mm diameter: Optimized for common high-performance exhaust valve stems. Durable construction: High-quality materials resist wear, heat and oil breakdown. Set of 8: Full complement for a complete cylinder head service or rebuild. Performance ready: Ideal for stock, upgraded or race applications. Benefits Improve valve sealing, reduce oil consumption, and extend valve train life with professionally machined guides. Brian Crower’s reputation for motorsport-quality components ensures consistent tolerance control and dependable operation under elevated RPM and temperature. Fitment & Installation Fits Mitsubishi 4G63 / Evo engines that accept 6.6mm exhaust guides. Professional installation or machine shop installation recommended for proper press-fit and alignment.