310 1341 Crankcase MK Series 4 1 2" Harley Davidson FLH 1868 2021

Features: The demand for performance-based parts is growing, and these M8 engines are creating more power daily. All that power requires a quality base that the stock cases can’t provide.. This new version of the MK-Series Crankcases are ready for even more than the originals!. These cases are designed to accept cylinders up to 4 1/2”, which is massive! . Like the originals, these cases scrape more oil than stock and offer more reliability, all without frame modifications.. Features And Benefits: Stock deck height. Machined, close-fitting oil scraper (stock is as cast). Large volume sump. Redesigned, with a 4.695” spigot bore to accept larger bore cylinders.