Engine Driven Brackets

Are the S-10 4.3l Vortec V6 and the Silverado 4.3l Vortec V-6 the exact same engines? I want an engine driven kit from Suicidedoors.com and the only have the kit for the Vortec S-10. They have the fullsize kit from Air lift Co, but they are also alot more expensive. Thanks in advance.