SKU: ALL 31084
UPC: 848238019186
MPN: ALL31084
The ALLSTAR PERFORMANCE 1:1 Crank Pulley (ALL 31084) is a precision-engineered crankshaft pulley designed specifically for small block Chevy engines that require direct 1:1 belt-to-crankshaft speed matching. This product is ideal for builders and enthusiasts who are restoring or modifying small block Chevy powerplants, ensuring precise accessory drive timing without the added complexity of external timing adjustment systems.
Constructed from lightweight aluminum, this two-groove V-belt pulley is designed to reduce rotational mass while maintaining the structural integrity necessary for consistent belt drive performance. The natural finish enhances durability, and the pulley is engineered to work with short water pump configurations, making it suitable for applications where space is constrained.
This pulley is particularly beneficial for those engaged in restorations, engine swaps, and custom engine builds where factory dimensions must be respected. The 1:1 ratio is standard in naturally aspirated small block applications, ensuring accurate engine accessory timing and eliminating guesswork when replacing worn or damaged factory pulleys.
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