1957-1972 Chevrolet Small Block Short Water Pump Double Groove 6-3/4OD Crankshaft Pulley

1957-1972 Chevrolet Small Block Short Water Pump Double Groove 6-3/4″OD Crankshaft Pulley

OER reproduction crankshaft pulley for various GM 1957-72 small block motors with short water pump. This crankshaft pulley is a double-groove pulley that measures 6-3/4″ diameter. Stamped with GM# 3744043.

Small block engines with short water pump applications:

• 1955-1968 Chevrolet passenger cars
• 1955-1972 Chevrolet/GMC truck

Note: Can be used with a KW938 pulley to make a 3 groove pulley when adding power steering.

Important Warning Concerning Crankshaft Pulleys. Stock replacement, aftermarket stamped s teel or cast iron pulleys are not designed to exceed 400 horsepower or 6000 RPM. Using reproduction pulleys on engines in excess of these limits may result in catastophic disintegration of the pulley causing severe damage to the engine, cooling system an d body parts. OER® assumes no liability for damages caused by improper usage of pulleys. Please be sure to install the pulley properly to avoid damages that could occur from improper installation or exceeding the recommended RPM limitations.