MAHLE Original Top End Engine Gasket Set - 6.6 L - GM Duramax HS54580 R07C15W46 400 in Bore

400 in Bore

4 position

Pro Stock Regulator 4-Port

The high strength phenolic rubbing blocks provide superior durability when used with heavy spring tension

MAHLE Original Top End Engine Gasket Set - 6.6 L - GM Duramax HS54580 R07C15W46 400 in BoreProduct Description: Engine Gasket Set Top End 6. 6 L GM Duramax MAHLE Performance boasts the most extensive line of performance engine bearings in the market hands down. Combining the legendary CLEVITE bearing brand for domestic applications with the global coverage in the MAHLE brand for the import market, MAHLE Performance truly is the engine bearing of choice in the performance bearing market. CLEVITE engine bearings have been winning NASCAR