Chevrolet small block aluminum water pump pulley, long water pump, single groove, v-belt, Transdapt 9482. Made of 356 aluminum alloy, heat treat to T-6 specs. Pulley diameter is 6 5/8" with a 2 1/4" depth.
HOW TO IDENTIFY YOUR PULLEY DESIGN: The "long" water pump pulley stands out from the timing cover about a "fingers width". The "short" water pump pulley almost touches the timing cover. The long water pump design was commonly used on 1975 and newer engines, but can be used on older engines where the long water pump is used. To use this pulley on older engines, all accossory brackets and pulleys must be designed for the long water pump.
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