Bigger displacement, more torque and more power: Our 5150 Autosport 3.2L / 3.4L BMW M54 Stroker Kit is specifically designed for BMW M54B22, M54B25, and M54B30 engines. Utilizing CP-Carrillo Pro-Xtreme Forged Pistons and Manley Performance Connecting Rods, as well as the 5150 4340 Billet Steel Crankshaft, this kit has stood up to the tests and trials of high horsepower application time and time again. We only sell you the products that we have used and tested ourselves. Other teams have applied this kit in Hill Climb, Road Racing, Endurance Racing, Rally, Time Attack, Drag Racing, Roll Racing, Drifting, and Street applications, all with powerful results. Benefits of Stroking an Engine With higher displacement, your engine will produce greater power and torque, thanks to increased cylinder volume and improved air-fuel mixture combustion The longer stroke in the crankshaft increases the leverage on the connecting rods, resulting in increased torque output at lower RPMs Improved throttle response Increased horsepower BMW M54 Stroker Kit Contents 5150 Autosport 4340 Billet Steel Crankshaft, 97mm Stroke Professionally turned, polished, and coated with anti-wear coating Fully balanced Manley Lightweight Connecting Rods CP-Carrillo Pro-Xtreme Forged Pistons CP-Carrillo Piston Wrist Pins CP-Carrillo Piston Rings CP-Carrillo Piston Wire Locks Our BMW M54 Stroker Kit offers varying displacements, ranging from 3.2L to 3.4L, depending on the selected bore size: 84 mm bore size results in a displacement 3225 cc 84.5 mm bore size results in a displacement 3270 cc 85 mm bore size results in a displacement of 3303 cc 85.5 mm bore size yields a displacement of 3342 cc 86 mm bore size provides a displacement of 3381 cc Please note that the 85mm, 85.5mm, and 86mm pistons require sleeving the block. Don't see the piston combination you're looking for? Have more questions? Contact our engine build advisors to discuss your next build.
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