Chevrolet Chevelle Forums - Long or short water pump

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smokenjoep01

11-21-2010 01:27 PM

Long or short water pump

Looking to find out how I determine if I need a long or short water pump for my 1972 - 307ci.? It has A/C and auto transmission. Plan on using a aftermarket flex fan.

Rattler

11-21-2010 07:35 PM

Are the accessories tucked up real close against the motor? long pump brings the accessories tighter into the motor. Short pump has accessories further away from block and uses longer belts.

To see what your current one is you can measure the distance from the surface that mounts to the block to the hub where the pulley mounts. Short=5 5/8" Long=7"

crankshaft

11-22-2010 08:23 PM

real close up to the timing chain cover is a short ,, distance between the 2 would be a long

dbradley

12-31-2010 02:29 PM

'69 and later....... LONG water pump.

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