Chevrolet small block aluminum crankshaft pulley, long water pump, double groove, v-belt, Transdapt 9485. Made of 356 aluminum alloy, heat treated to T-6 specs. Pulley diameter is 6 9/16" with a 2 7/8" depth.
HOW TO IDENTIFY YOUR PULLEY DESIGN: The "long" water pump stand out from the timing cover about a "fingers width". The "short" water pump almost touches the timing cover. The long water pump was commonly used on 1975 and newer Chevrolet small block engines with power steering, but can be used on older engines utilizing the long water pump. To use this pulley on older engines, all accessory brackets and pulleys must be designed for the long water pump.
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