Perfect fit for Chevy LS engines with 1997-2004 C5 Corvette manual transmissions, can also be used with late model LT1 and LT4 engines.;Quick Time Bellhousings are the most accurate bellhousings available due to our unique manufacturing processes; QuickTime cones are spun, not rolled or stamped. This allows Quick Time Bellhousings to be the most dimensionally stable Bellhousings available; Built from high grade steel – Work hardens to over 80,000 PSI strength. Over two times the strength of other steel bellhousings; 100% built in the USA; Patent on 16 points of Bellhousing Design & Process;