B58 Stroker Piston

5150 AutoSport B58 Stroker Forged Piston – Pro-Xtreme Series Engineered to match the demands of the 5150 AutoSport B58 Stroker Kit, this custom-forged piston delivers extreme performance and uncompromising reliability for high-horsepower, long-stroke B58 builds. Developed in collaboration with CP-Carrillo, this stroker-specific piston is based on our Pro-Xtreme B58 design, with geometry tailored for the increased stroke and rod length in our 3.2L and 3.4L stroker kits. Rated for up to 2000 horsepower and 9500 RPM, this piston is made for high boost builds—whether you're drag racing, doing roll racing, or running a full race-prepped street car. It's forged from aerospace-grade aluminum and engineered using CAD and FEA technology to reduce weight, manage heat, and thrive under extreme cylinder pressures. Designed exclusively for use with the 5150 AutoSport Stroker Kit for BMW / Toyota B58 engines, this piston is what makes our record-breaking stroker builds possible. Key Features: Custom-forged for the 5150 AutoSport B58 Stroker Kit Built on the Pro-Xtreme piston platform manufactured for 5150 by CP-Carrillo Supports up to 2000 HP and 9500 RPM Forged from high-strength, aircraft-grade aluminum alloy CAD/FEA optimized for strength, weight savings, and thermal efficiency Handles high compression and extreme boost Ideal for B58 stroker builds, drag racing, and high-performance street cars Pro-Xtreme Piston Sets Include: - Pistons - PVD Rings (Install Guide Here) - Pins - Locks - Spec Sheet Please note, the Pro-Xtreme Piston is engineered to handle up to 2000HP, however, the Standard Wrist Pin can only handle 800-850HP. To exceed 850HP, it is a MUST to use Heavy Duty pins. BMW B58 Gen 1 Applications: 1 Series 2016-2019     F20/F21     M140i 2 Series 2016-2019     F22/F23     M240i 3 Series 2015-2019     F30/F31     340i / 340i xDrive 2016-2019     F34     340i GT / 340i GT xDrive 4 Series 2016-2020     F32/F33/F36     440i / 440i xDrive 5 Series 2016-2019     G30/G31     540i / 540i xDrive 6 Series 2017-2019     G32     640i GT / 640i GT xDrive 7 Series 2015-2019     G11/G12     740i / 740i xDrive X3 Series 2017-2019     G01     X3 M40i X4 Series 2018-2019     G02     X4 M40i BMW B58 Gen 2 Applications: 3 Series 2019-Present     G20/G21     M340i / M340i xDrive 4 Series 2020-Present     G22/G23/G26     M440i / M440i xDrive Z Series 2019-Present     G29     Z4 M40i 5 Series 2020-Present     G30/G31 LCI     540i / 540i xDrive 6 Series 2020-Present     G32 LCI     640i GT / GT 640i xDrive  7 Series 2019-Present     G11/G12 LCI     740i / 740i xDrive X3 Series 2020-Present     G01     X3 M40i X4 Series 2020-Present     G02     X4 M40i X5 Series 2018-Present     G05     X5 xDrive40i X6 Series 2019-Present     G06     X6 xDrive40i X7 Series 2018-Present     G07     X7 xDrive40i ALPINA B58 Gen 2 Applications: B3 Series 2020-Present     G20/G21     B3 B4 Series 2022-Present     G22     B4 B5 Series 2020-Present     G30     B5 XB7 Series 2020-Present     G07     XB7 Toyota B58 Gen 2 Applications: A90 / A91 Supra 2020-Present     GR Supra 3.0     2020-Present     GR Supra 3.0 Premium     2021-Present     GR Supra 3.0 A91 Edition