The Vortec 8100 is a V8 truck engine. 2001-2006 Chevy 8.1L engines available at Roadmaster. 2001     8.1L – Roller Cam, Vin G,E 02-03    8.1L – Roller Cam, Vin G,E 04-06    8.1L – Roller Cam, Vin G,E This is a redesigned Chevrolet Big-Block engine and was introduced with... read more