BMW S65 Stroker Kit | 5150 AutoSport | 4.5L / 4.6L / 4.7L

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BMW S65 Stroker Kit by 5150 AutoSport Bigger displacement, more torque and more power; Our 5150 AutoSport 4.5 - 4.6L - 4.7L BMW S65 Stroker Kit is specifically designed for BMW S65 Engines. Benefits of Stroking an Engine: Higher displacement offers greater power output and torque from increased cylinder volume and improved air-fuel mixture combustion Longer crankshaft stroke increases connecting rod leverage for increased torque output at lower RPMs Improved throttle response Increased horsepower 5150's 4.7L S65 stroker kits offer varying displacements, from 4500 cc to 4700 cc, depending on the selected bore size: 92 mm bore size results in a displacement 4500 cc 93* mm bore size results in a displacement of 4600 cc 94* mm results in the maximum displacement of 4700 cc *Require block to be professionally sleeved Don't see the piston combination you're looking for? Have more questions? Contact our engine build advisors to discuss your next build. BMW S65 Applications: 3 Series 2007-2011 E90 M3 2007-2013 E92 M3 2010-2011 E92 M3 GTS 2008-2013 E93 M3 Show more