1 Single Groove Long Water Pump Pulley For SBC Chevy 283 350 Polished Aluminum

--Fits All SB Chevy Engines When Using A Long Water Pump

--Fits SB Chevy 265 283 305 327 350 383 400 Using A Long Water Pump

--Pulley Diameter Is 6 9/16"

--Pulley Is 2 3/4" Tall

--Bolt Pattern Is 2 3/4"

--Center Hole Is 1 1/8"

--Machined From Billet Aluminum

--Package: Including all items in the picture.

Note: Professional Installation is Highly Recommended.