Chevrolet big block aluminum water pump pulley, short water pump, double groove, v-belt, Transdapt 8875. Made of 356 aluminum alloy, heat treated to T-6 specs. Pulley diameter is 6 3/8" with a 2 7/8" depth.
HOW TO IDENTIFY YOUR PULLEY DESIGN: The "short" water pump almost touches the timing cover. The "long" water pump stand away from the timing a about a "fingers width". The short water pump was commonly used on older big blocks. This pulley is for engines with air conditioning. All engine accessory brackets and pulleys must be of the short water pump design.
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