{"product_id":"5150-autosport-bmw-s55-complete-engine-build-kit","title":"5150 AutoSport BMW S55 Complete Engine Build Kit","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eBuild your \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW S55 engine for serious power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5150 AutoSport Complete Engine Build Kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a comprehensive collection of high-performance internal engine components developed for the BMW F80 M3, F82\/F83 M4 and F87 M2 Competition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe factory BMW S55 3.0-litre twin-turbocharged straight-six is an extremely capable performance engine, but owners pursuing significantly increased horsepower, larger turbochargers and higher boost pressures will eventually need to consider the limitations of the original engine internals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRather than sourcing individual components from multiple manufacturers and attempting to determine which combinations work best together, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5150 AutoSport S55 Engine Build Kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e brings together a proven selection of forged pistons, performance connecting rods, upgraded valvetrain components, camshafts, bearings and cylinder head hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDeveloped using 5150 AutoSport's experience with high-performance BMW engine builds, this package is intended to provide the core internal components required for a comprehensive S55 engine build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCustomers can choose between \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFerrea or SuperTech valvetrain components\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCP-Carrillo or Manley connecting rods\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing the package to be configured around their individual build requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eComplete high-performance engine internals package for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW S55\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for high-horsepower and high-boost engine builds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for BMW F80 M3, F82\/F83 M4 and F87 M2 Competition applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCP-Carrillo x 5150 AutoSport Pro-Xtreme forged pistons\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHeavy-duty piston pins\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCP-Carrillo or Manley connecting rods\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFerrea or SuperTech valvetrain\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUpgraded intake and exhaust valves\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance valve springs and valve locks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCAT Cams 278° \/ 272° camshaft kit\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eARP Custom Age 625+ cylinder head studs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenuine BMW cylinder head gasket\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCalico-coated high-performance connecting rod bearings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCalico-coated high-performance main bearings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eComponents selected using 5150 AutoSport's engine-building experience\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePre-shipment consultation to confirm the engine specification\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eA Complete Engine Build Package For The BMW S55\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBuilding a high-performance BMW S55 involves considerably more than simply replacing the factory pistons and connecting rods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs power and boost pressure increase, additional demands are placed on the pistons, connecting rods, bearings, cylinder head fastening system and valvetrain. Choosing appropriate components for each area is essential when developing an engine intended for substantially increased output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport Complete Engine Build Kit addresses these requirements by combining upgraded components for both the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eS55 bottom end and cylinder head\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRather than treating each component as an isolated upgrade, the package provides a coordinated selection of parts intended to work together as the foundation of a high-performance engine build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes it particularly attractive for owners planning a fully built S55 engine for upgraded turbocharger applications, drag racing, track use or other demanding performance builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's Included In The 5150 AutoSport S55 Engine Build Kit?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe complete package includes the following components:\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eComponent\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eManufacturer \/ Specification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Performance Valve Springs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFerrea or SuperTech\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Performance Intake Valves\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFerrea or SuperTech\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Performance Exhaust Valves\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFerrea or SuperTech\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Performance Valve Locks\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFerrea or SuperTech\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePerformance Camshafts\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCAT Cams 278° \/ 272°\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCylinder Head Studs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eARP Custom Age 625+\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCylinder Head Gasket\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenuine BMW\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eForged Pistons\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCP-Carrillo x 5150 AutoSport Pro-Xtreme\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePiston Pins\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHeavy-Duty Pins\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnecting Rods\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCP-Carrillo Pro-Xtreme or Manley Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnecting Rod Bearings\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCalico-Coated 5150 AutoSport Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMain Bearings\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCalico-Coated 5150 AutoSport Performance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eThe final piston specification, compression ratio and other build-specific requirements are confirmed during the consultation process before the kit is dispatched.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eCP-Carrillo x 5150 AutoSport Pro-Xtreme Forged Pistons\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAt the heart of the engine build kit are the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCP-Carrillo x 5150 AutoSport Pro-Xtreme forged pistons\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePistons are among the most heavily loaded components inside a high-output turbocharged engine. As cylinder pressures and combustion temperatures increase, piston construction and specification become increasingly important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Pro-Xtreme pistons are intended for demanding performance applications where the engine will be operating beyond its original factory power output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe kit also includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eheavy-duty piston pins\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing the corresponding upgraded connection between the pistons and connecting rods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBecause different engine builds can require different piston specifications, 5150 AutoSport confirms the appropriate configuration with the customer before shipping.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis includes discussing the intended \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ecompression ratio\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, which must be selected in conjunction with the complete engine specification and intended use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eCP-Carrillo Or Manley Performance Connecting Rods\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe kit is available with two connecting rod configurations:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOption 1: CP-Carrillo x 5150 AutoSport Pro-Xtreme Connecting Rods\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA premium connecting rod option intended for demanding high-performance S55 engine builds. This configuration pairs CP-Carrillo connecting rods with the included CP-Carrillo Pro-Xtreme forged pistons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOption 2: Manley Performance Connecting Rods\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAn alternative high-performance connecting rod option from Manley, another established manufacturer of performance engine internals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBoth options are intended to replace the original S55 connecting rods as part of a complete engine build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe best choice will depend on the intended power output, engine configuration, operating conditions and preferences of the engine builder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eHigh-Performance Ferrea Or SuperTech Valvetrain\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAs part of the complete engine build package, 5150 AutoSport includes an upgraded valvetrain with a choice of two manufacturers:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFerrea\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuperTech\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eBoth configurations include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance valve springs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance intake valves\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance exhaust valves\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance valve locks\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe valvetrain plays a critical role in controlling the movement of the intake and exhaust valves as engine speed increases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor engines fitted with more aggressive camshafts or intended to operate under demanding conditions, the correct valve spring and valve component specification becomes particularly important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe upgraded valvetrain components in this package are selected to support the overall engine build and work alongside the included CAT Cams performance camshafts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eCAT Cams 278° \/ 272° Performance Camshaft Kit\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport S55 Engine Build Kit includes a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCAT Cams 278° \/ 272° camshaft kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCamshafts control the opening and closing of the engine's intake and exhaust valves, influencing how air enters the cylinders and how exhaust gases leave the combustion chambers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a high-performance turbocharged engine, camshaft selection is an important part of optimising airflow and supporting the intended power delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe included CAT Cams package features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e278° camshaft specification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e272° camshaft specification\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese performance camshafts are intended to form part of a more comprehensive S55 engine build rather than being treated as a standalone upgrade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCorrect installation, timing and compatibility with the selected valvetrain components are essential.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEngine calibration and supporting modifications will also need to be considered when using performance camshafts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eARP Custom Age 625+ Cylinder Head Studs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe package includes an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eARP Custom Age 625+ cylinder head stud kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, replacing the corresponding factory cylinder head fastening hardware.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs boost pressure and cylinder pressure increase, maintaining a secure seal between the cylinder head and engine block becomes increasingly important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance cylinder head studs are commonly used in built turbocharged engines to provide a fastening solution appropriate for demanding operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eARP's Custom Age 625+ material is widely used in high-performance engine applications where exceptional fastener strength is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen combined with the included \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGenuine BMW cylinder head gasket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, these studs form part of the upgraded cylinder head sealing arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCorrect installation procedures, preparation and tightening specifications must be followed by the engine builder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eGenuine BMW Cylinder Head Gasket\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGenuine BMW cylinder head gasket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is included as part of the package.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe head gasket seals the interface between the engine block and cylinder head, helping maintain separation between combustion chambers, coolant passages and oil galleries.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncluding a Genuine BMW gasket allows the build to retain an original BMW sealing component alongside the upgraded ARP head studs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe engine builder should confirm that the gasket specification is appropriate for the final engine configuration, including any machining or dimensional changes made during the build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eCalico-Coated High-Performance Rod Bearings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport kit includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCalico-coated high-performance connecting rod bearings\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eConnecting rod bearings operate between the crankshaft journals and the connecting rods, supporting the rotating assembly under substantial mechanical loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs engine output increases, bearing selection, oil clearance and lubrication become particularly important.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe supplied 5150 AutoSport performance bearings feature a Calico coating intended for demanding engine applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese bearings are included as part of the complete rotating assembly package and should be installed only after the engine builder has measured and confirmed the appropriate bearing clearances.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eCalico-Coated High-Performance Main Bearings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIn addition to the connecting rod bearings, the kit includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCalico-coated high-performance main bearings\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe main bearings support the crankshaft within the engine block and are critical to the operation of the rotating assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCorrect bearing fitment is particularly important during a forged engine build, where crankshaft condition, journal dimensions, bearing clearances and oil supply must all be considered.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe inclusion of both rod and main bearings allows the engine builder to address these components together during the bottom-end assembly process.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eBuilt For High-Boost S55 Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe BMW S55 is a popular platform for high-horsepower engine builds, with substantial aftermarket support for upgraded turbochargers, fuelling systems, cooling and engine management.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHowever, increasing boost pressure and power output also increases the demands placed on the engine's internal components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport Complete Engine Build Kit is intended for owners progressing beyond a conventional bolt-on tuning setup and planning a more comprehensive engine build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTypical applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-horsepower BMW S55 builds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUpgraded twin-turbocharger setups\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSingle-turbo S55 conversions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-boost engine configurations\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDrag racing builds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTrack-focused performance builds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eComplete engine rebuilds incorporating forged internals\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The kit does not have a universal guaranteed horsepower rating. The achievable power output and engine reliability depend on the final component specifications, engine preparation, machining, calibration, supporting modifications and operating conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eChoose Your Engine Build Configuration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eTwo major component selections are available when ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eValvetrain Options\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFerrea\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuperTech\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConnecting Rod Options\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCP-Carrillo Pro-Xtreme\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManley Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis allows the package to be configured around the intended engine build rather than forcing every customer into exactly the same component combination.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe piston configuration and compression ratio are then confirmed through the mandatory consultation process.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eBMW S55 Engine Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport Complete Engine Build Kit is designed for the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW S55 3.0-litre twin-turbocharged straight-six engine\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCompatible BMW applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F80 M3 Saloon\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F80 M3 Competition\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F82 M4 Coupé\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F82 M4 Competition\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F83 M4 Convertible\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F83 M4 Competition\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F87 M2 Competition\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F87 M2 CS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F80 M3 CS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F82 M4 CS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBMW F82 M4 GTS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFitment and the required engine specifications should be confirmed before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThis kit is not intended for the original N55-powered BMW F87 M2 or the S58-powered BMW G80\/G81 M3, G82\/G83 M4 and G87 M2.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eProfessional Engine Building Required\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 5150 AutoSport Complete Engine Build Kit is intended for installation by an experienced performance engine builder.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis is not a simple bolt-on modification. Installation requires substantial engine disassembly, precision measurement and correct assembly procedures.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDepending on the condition and specification of the engine, additional work may include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngine block inspection and machining\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCylinder bore measurement and preparation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePiston-to-wall clearance measurement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnecting rod and main bearing clearance measurement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCrankshaft inspection\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCylinder head inspection and preparation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eValve spring installation and measurement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCamshaft installation and timing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRotating assembly balancing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngine calibration and supporting system upgrades\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAdditional components, machining, labour and tuning may be required to complete the engine build.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe supplied package provides the specified internal engine components, not a complete assembled engine or every ancillary component required for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Choose 5150 AutoSport?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e5150 AutoSport specialises in high-performance BMW engine components and engine-building solutions, with extensive experience supporting customers pursuing significantly increased engine output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRather than leaving customers to select pistons, rods, bearings, camshafts and valvetrain components independently, the Complete S55 Engine Build Kit combines the components that 5150 AutoSport recommends based on its engine-building experience.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKey advantages include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eComprehensive S55 internal engine package\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHigh-performance components from established manufacturers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eForged CP-Carrillo piston construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of connecting rod manufacturer\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of upgraded valvetrain\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCAT Cams performance camshafts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eARP Custom Age 625+ head studs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCoated rod and main bearings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBuild-specific consultation before shipping\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFor owners planning a serious S55 engine build, this approach simplifies component selection while allowing important specifications to be confirmed before assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Buy From R44 Performance?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eR44 Performance specialises in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW M3, M4 and M2 performance upgrades\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with extensive experience supplying components for modified S55-powered vehicles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur range covers everything from conventional bolt-on modifications to supporting components for high-horsepower BMW engine builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen you purchase the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5150 AutoSport BMW S55 Complete Engine Build Kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from R44 Performance, you'll benefit from:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eGenuine 5150 AutoSport components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSpecialist BMW S55 product knowledge\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of Ferrea or SuperTech valvetrain\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eChoice of CP-Carrillo or Manley connecting rods\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMandatory engine specification consultation before dispatch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAccess to complementary S55 performance components\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUK and worldwide shipping\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDedicated customer support\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFor owners building a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBMW F80 M3, F82\/F83 M4 or F87 M2 Competition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for substantially increased power, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5150 AutoSport S55 Complete Engine Build Kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides a comprehensive foundation of forged pistons, performance connecting rods, upgraded valvetrain components, camshafts, bearings and cylinder head hardware in one configurable package.\u003c\/span\u003e\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Ferrea \/ CP-Carrillo","offer_id":58175210422654,"sku":"5150-Engine-S55-F","price":10199.0,"currency_code":"GBP","in_stock":true},{"title":"Ferrea \/ Manley","offer_id":58175210455422,"sku":"5150-Engine-S55-F-M","price":8999.0,"currency_code":"GBP","in_stock":true},{"title":"SuperTech \/ CP-Carrillo","offer_id":58175210488190,"sku":"5150-Engine-S55-S","price":10199.0,"currency_code":"GBP","in_stock":true},{"title":"SuperTech \/ Manley","offer_id":58175210520958,"sku":"5150-Engine-S55-S-M","price":8999.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/7568\/8011\/files\/BMW-S55-Complete-Engine-Build-Kit.webp?v=1791447288","url":"https:\/\/r44performance.com\/products\/5150-autosport-bmw-s55-complete-engine-build-kit","provider":"R44 Performance","version":"1.0","type":"link"}