1 Groove Short Water Pump Crank Pulley For SB Chevy 283 327 350 400 SWP

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

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

--Pulley Diameter Is 6 9/16"

--Pulley Is 3/4" Tall

--Bolt Pattern Is 2 3/4"

--Center Hole Is 1 1/8"

--Machined From Billet Aluminum

--These Feature Deep Grooves To Prevent Belts From Slipping

--Package: Including all items in the picture.

Note: Professional Installation is Highly Recommended.