Trans-Dapt Performance Merchandise chrome water pump pulleys are forged steel development, and feature a sturdy chrome end. One and two groove pulleys are to be had for each long and short water pump applications. The bolt circle diameter on short water pump pulleys is 1.75 inches and 2.30 inches on long water pump pulleys. Chevrolet has made various pulley diameters. We have now chosen to make use of the preferred diameter for our pulleys. In a few circumstances, the stock accessories won’t run at precisely the similar speed as in the beginning designed. Even supposing Corvettes have a brief water pump via 1982, our short water pump pulleys will have compatibility fifty five-seventy four most effective. Note: Because of the quite a lot of casting configurations on aftermarket water pumps (particularly aluminum pumps), actual have compatibility can’t be guaranteed on all applications.