SBC Short Water Pump Pre-69 5/8in Shaft

Water Pump - Mechanical - 5/8 in Pilot - Short Design - Aluminum - Natural - Small Block Chevy - Each / THIS PUMP IS NOT RECOMMENDED FOR USE WITH MECHANICAL FANS OVER 5000 RPM. APPLICATIONS ABOVE THIS RPM SHOULD USE THE ALL31105 PUMP WITH A 3/4 BEARING. FROM BLOCK MOUNTING SURFACE TO OUTSIDE OF PULLEY FLANGE MEASUREMENT IS 5-5/8. WATER PUMP HAS PROVISIONS FOR HEATER AND BYPASS FITTINGS BUT ARE NOT DRILLED. GASKETS INCLUDED