Description: aluminum pulley set-up. This kit consists of a 8 pieces. This kit is designed to work on vehicles with Small Block For Chevy engines and a long water pump. This a great option if you running power steering and NO A/C. Will not work with Vortec engines. For standard (non-metric) water pumps. Will not work with reverse rotation pumps. Bolt circle for water pump pulley is 2-1/4" with a 5/8" pilot hole. Water pump pulley is 6-5/8" in diameter. Crank pulley is 6-5/8" in diameter. This kit consists of a 7 pieces: Billet Key Way power steering pump pulley (1 groove) Billet 1 groove water pump pulley and bolts .
