Enginetech ST187538 Engine Valve Seat Set - 4 Pack for Improved Valve Train Performance Engine Rear Main Seal Kit 5 H25A DOHC

5 H25A DOHC

high-performance replacement part for specific GM models

5 DOHC G6AU

1997 BUICK RIVIERA 3

9L 177CID V6 OHV

Enginetech ST187538 Engine Valve Seat Set - 4 Pack for Improved Valve Train Performance Engine Rear Main Seal Kit 5 H25A DOHCEngine Valve Seat 4 Pack The Enginetech ST187538 Engine Valve Seat Set is designed to provide a precise fit and reliable performance for a variety of engine rebuild projects. Crafted from high quality Hi Chrome material, these valve seats are engineered to withstand the high temperatures and pressures typical in modern engines, ensuring longevity and durability. The 45 degree seat angle facilitates optimal sealing and efficient airflow, contributing