{"product_id":"bmw-s54-stroker-kit","title":"BMW S54 Stroker Kit 3.5L","description":"\u003cp\u003eBuild your BMW S54B32 \/ S54 engines with the BMW S54 Stroker Kit 3.5L, to handle serious power and sustained high-RPM abuse. Engineered by 5150 AutoSport, this stroker kit is built to the standards demanded by high-performance and motorsport BMW builds.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned for BMW S54B32 \/ S54 engines\u003c\/li\u003e\n\u003cli\u003eForged from high-strength, lightweight materials\u003c\/li\u003e\n\u003cli\u003eEngineered for maximum power and durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to exacting tolerances\u003c\/li\u003e\n\u003cli\u003eSuitable for naturally aspirated and forced-induction builds\u003c\/li\u003e\n\u003cli\u003eRigorously tested motorsport-grade quality\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple connecting rod selection options to suit your build\u003c\/li\u003e\n\u003cli\u003eSupplied by 5150 AutoSport, trusted by BMW enthusiasts worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003ch4\u003e\u003cstrong\u003e5150 AutoSport 3.4L \/ 3.5L BMW S54 Stroker Kit – Maximize Displacement, Torque \u0026amp; RPM\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eBMW S54 Stroker Kit | 3.4L 3.5L Stroker Kit by 5150 AutoSport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eUpgrade your BMW S54 engine with our \u003cstrong\u003e5150 AutoSport 3.4L \/ 3.5L BMW S54 Stroker Kit\u003c\/strong\u003e, engineered for \u003cstrong\u003emore displacement, higher torque, and extreme high-RPM performance\u003c\/strong\u003e. Designed for track, drag, and endurance racing, this kit delivers \u003cstrong\u003eunmatched reliability and power\u003c\/strong\u003e in high-horsepower applications.\u003c\/p\u003e\u003cp\u003eAt the heart of this BMW S54 Stroker Kit is the 5150 AutoSport 4340 Billet Steel Crankshaft, built for strength under extreme loads. Paired with CP-Carrillo Pro-Xtreme Forged Pistons and Pro-Xtreme Connecting Rods, this kit supports \u003cstrong\u003e9,600+ RPM capability\u003c\/strong\u003e when equipped with the right components. Whether pushing naturally aspirated power or forced induction, this setup has been track-proven and dyno-tested to deliver results.\u003c\/p\u003e\u003cp\u003e5150 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eBenefits of Stroking an Engine\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e- With higher displacement, your engine will produce greater power and torque, thanks to increased cylinder volume and improved air-fuel mixture combustion\u003c\/p\u003e\u003cp\u003e- The longer stroke in the crankshaft increases the leverage on the connecting rods, resulting in increased torque output at lower RPMs\u003c\/p\u003e\u003cp\u003e- Improved throttle response\u003c\/p\u003e\u003cp\u003e- Increased horsepower\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003eBMW S54 Stroker Kit Contents \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e- 5150 Autosport 4340 Billet Steel Crankshaft, \u003cstrong\u003e97mm Stroke \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e - Professionally turned, polished, and coated with anti-wear coating\u003c\/p\u003e\u003cp\u003e - Fully balanced\u003c\/p\u003e\u003cp\u003e- SP Components Connecting Rods (Rated for 1,000HP, 8500 RPM)\u003c\/p\u003e\u003cp\u003e - Optional Upgrade to \u003cstrong\u003eCarrillo Pro-Xtreme Connecting Rods\u003c\/strong\u003e (Rated for 2,000HP, 9500 RPM)\u003c\/p\u003e\u003cp\u003e- CP-Carrillo \u003cstrong\u003ePro-Xtreme Forged Pistons\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e - CP-Carrillo Piston Wrist Pins \u003c\/p\u003e\u003cp\u003e - CP-Carrillo Piston Rings \u003c\/p\u003e\u003cp\u003e - CP-Carrillo Piston Wire Locks\u003c\/p\u003e\u003cp\u003eOur BMW S54 Stroker Kit offers varying displacements, ranging from 3300 cc to 3500 cc, depending on the selected bore size:\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e84.5 mm \u003c\/strong\u003ebore size for\u003cstrong\u003e 3270 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e85 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3303 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e85.5 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3342 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e86 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3381 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e86.5 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3420 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e87 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3460 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e87.5 mm\u003c\/strong\u003e bore size for \u003cstrong\u003e3500 cc displacement\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHave more questions? Contact our engine build advisors to discuss your build.\u003c\/p\u003e\u003ch3\u003eConnecting Rod Selection Options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSP Components\u003c\/li\u003e\n\u003cli\u003eCP-Carrillo\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBMW S54 Models\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBMW E46 M3\u003c\/li\u003e\n\u003cli\u003eBMW Z3 M Roadster \/ Coupe\u003c\/li\u003e\n\u003cli\u003eBMW Z4 M Roadster \/ Coupe\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose 5150 AutoSport?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePurpose-built BMW performance engineering\u003c\/li\u003e\n\u003cli\u003eComponents developed for high-power, real-world durability\u003c\/li\u003e\n\u003cli\u003eTrusted by serious BMW engine builders\u003c\/li\u003e\n\u003cli\u003eSpecialist knowledge of forced-induction and high-RPM builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Buy from R44 Performance?\u003c\/h3\u003e\u003cp\u003eR44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBMW specialists\u003c\/li\u003e\n\u003cli\u003eGenuine 5150 AutoSport products\u003c\/li\u003e\n\u003cli\u003eFast UK \u0026amp; worldwide shipping\u003c\/li\u003e\n\u003cli\u003eExpert product support\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUpgrade your BMW S54B32 \/ S54 build with the BMW S54 Stroker Kit 3.5L — available now from R44 Performance.\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"SP Components \/ 84.5 mm \/ 8.5:1","offer_id":57549783040382,"sku":"5150-SK-S54-84.5-8.5-SP","price":6175.0,"currency_code":"GBP","in_stock":true},{"title":"SP Components \/ 84.5 mm \/ 9.5:1","offer_id":57549783073150,"sku":"5150-SK-S54-84.5-9.5-SP","price":6175.0,"currency_code":"GBP","in_stock":true},{"title":"SP Components \/ 84.5 mm \/ 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