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    • BTRBTRCRA4000F158.jpg
    • BTRCRA4000F158.jpg
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    Brian Tooley Racing BTR CRANKSHAFT 4.000 STROKE WITH 58X RELUCTOR INSTALLED BTRCRA4000F158

    Part Number: BTRCRA4000F158
    Regular Price $939.99

    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 BTR Forged Crankshaft is a 4340 forged steel crankshaft built for GM LS-Series engines, machined to a 4.000 in stroke with an internally balanced counterweight design and a 58X reluctor wheel installed. It is core-hardened using a nitride process for improved strength, bearing life, and size tolerances held to +/-.0002", and uses a 1-piece rear seal.

    • Part Number: BTRCRA4000F158
    • Material: Forged 4340 steel, nitride core-hardened
    • Stroke: 4.000 in
    • Balance: Internal
    • Reluctor Wheel: 58X, installed
    • Rod Journal Diameter: 2.100 in, with .125 in radius on rod and main journals
    • Oiling: Chamfered oil holes for improved oiling
    • Counterweights: Chamfered and radiused leading edge
    • Snout/Flange: Standard wet sump snout with 6-bolt rear flange, compatible with factory and many aftermarket balancers, flywheels, and flexplates
    • Seal: 1-piece rear seal design
    • Application: GM LS-Series engines
    • Quantity: Each
    • Install Note: Requires an OEM-style, one-piece crank gear

    FAQ

    What stroke and reluctor does the BTRCRA4000F158 crankshaft have?

    This crankshaft is machined to a 4.000 in stroke and comes with a 58X reluctor wheel already installed.

    Is this crankshaft internally or externally balanced?

    It is an internally balanced crankshaft with a 1-piece rear seal, built for GM LS-Series engines.

    What size crank gear does this crankshaft need?

    The BTRCRA4000F158 requires an OEM-style, one-piece crank gear for installation.

    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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