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    • Allstar Performance Crankshaft Pulley — 1:1 V-Belt 2 Groove, 6.625 in, SBC Short Water Pump | ALL31084
    • Allstar Performance Crankshaft Pulley — 1:1 V-Belt 2 Groove, 6.625 in, SBC Short Water Pump | ALL31084
    • ALL31084.jpg

    Allstar Performance Crankshaft Pulley — 1:1 V-Belt 2 Groove, 6.625 in, SBC Short Water Pump | ALL31084

    Part Number: ALL31084
    Regular Price $49.99

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    The Allstar Performance ALL31084 is a 1:1 ratio crankshaft pulley for V-belt applications, machined from aluminum with a natural finish. It has 2 grooves and a 6.625 in diameter, the largest in this pulley family, and is designed for Small Block Chevy engines with a short water pump.

    Spec Sheet: Allstar Spec Sheet

    Compatibility

    This pulley fits Small Block Chevy engines with a short water pump.

    FAQ

    What size is the Allstar Performance ALL31084 crankshaft pulley?

    The ALL31084 crankshaft pulley has a 6.625 in diameter with 2 grooves for V-belts, the largest diameter in the ALL31030/ALL31084/ALL31094 pulley family.

    What ratio is the ALL31084 crankshaft pulley?

    The ALL31084 crankshaft pulley has a 1:1 ratio.

    What engine and water pump configuration does the ALL31084 pulley fit?

    The ALL31084 crankshaft pulley is designed for Small Block Chevy engines using a short water pump.

    How is the ALL31084 different from the ALL31030 and ALL31094 pulleys?

    The ALL31084 has a larger 6.625 in diameter and a 1:1 ratio, while the ALL31030 and ALL31094 are 4.75 in diameter pulleys with hardware included, differing from each other by finish.

    What material and finish is the ALL31084 pulley made from?

    The ALL31084 crankshaft pulley is made from aluminum with a natural finish.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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