{"product_id":"garrett-g38-1000-62mm-g-series-ii-supercore-grt938272-5003s","title":"Garrett G38-1000 62mm G-Series II Supercore","description":"\u003ch4\u003e1,000 Horsepower G-Series II Platform Supercore with Next-Generation Compressor Aero\u003c\/h4\u003e\u003cp\u003eThe Garrett G38-1000 62mm G-Series II Supercore (GRT938272-5003S) is a purpose-built high-horsepower turbocharger core engineered to support 500 to 1,000 horsepower on 2.0L to 5.5L engine displacements. The GRT938272-5003S features Garrett’s refined G-Series II compressor aerodynamics, delivering improved pressure ratio capability and airflow efficiency over the original G-Series platform, while retaining compatibility with the full G-Series turbine housing family including the 0.85, 0.95, and 1.06 A\/R housings in both V-Band and T4 divided inlet configurations. The 62mm compressor inducer paired with a 74mm turbine inducer and 66mm exducer provides balanced spool and peak-flow characteristics across the 500 to 1,000 horsepower range, making GRT938272-5003S a versatile foundation for high-output street and race builds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGRT938272-5003S G-Series II G38-1000 supercore with V-Band compressor outlet and 62mm inducer\u003c\/li\u003e\n\u003cli\u003eG-Series II compressor aero provides improved efficiency and higher pressure ratio capability over Gen I\u003c\/li\u003e\n\u003cli\u003eDual ceramic ball bearing center section delivers faster spool and reduced parasitic friction\u003c\/li\u003e\n\u003cli\u003eInconel turbine wheel for sustained high-temperature durability in boosted applications\u003c\/li\u003e\n\u003cli\u003e74mm turbine inducer flows up to 43 lbs\/min exhaust gas for strong mid-range and peak power\u003c\/li\u003e\n\u003cli\u003eCompatible with all G38 turbine housing kits including 757707-0037, 0038, 0039 (V-Band) and 0042, 0043, 0044 (T4\/V-Band)\u003c\/li\u003e\n\u003cli\u003eV-Band compressor outlet (117.4mm \/ 4.622 inch OD) matches GTX42, GTX45, and G42 dimensions for easy kit integration\u003c\/li\u003e\n\u003cli\u003eMachined speed sensor port and water fittings included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eGRT938272-5003S \/ 938272-5003S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eG-Series II G38-1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Inducer\u003c\/td\u003e\n\u003ctd\u003e62mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Exducer\u003c\/td\u003e\n\u003ctd\u003e88mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor Trim\u003c\/td\u003e\n\u003ctd\u003e51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor A\/R\u003c\/td\u003e\n\u003ctd\u003e0.84 (V-Band outlet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Inducer\u003c\/td\u003e\n\u003ctd\u003e74mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Exducer\u003c\/td\u003e\n\u003ctd\u003e66mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbo Reference\u003c\/td\u003e\n\u003ctd\u003e6266\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorsepower Rating\u003c\/td\u003e\n\u003ctd\u003e500 to 1,000 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Displacement\u003c\/td\u003e\n\u003ctd\u003e2.0L to 5.5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Speed\u003c\/td\u003e\n\u003ctd\u003e125,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing System\u003c\/td\u003e\n\u003ctd\u003eDual ceramic ball bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eV-Band Outlet OD\u003c\/td\u003e\n\u003ctd\u003e117.4mm (4.622 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbine Flow\u003c\/td\u003e\n\u003ctd\u003eUp to 43 lbs\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eVerify with Garrett distributor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat’s Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1 x GRT938272-5003S G-Series II G38-1000 Supercore Assembly\u003c\/li\u003e\n\u003cli\u003eGasket kit\u003c\/li\u003e\n\u003cli\u003e2 x AN6 water fitting nipples for coolant connections\u003c\/li\u003e\n\u003cli\u003eNote: Turbine housing kit must be purchased separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout Garrett Motion\u003c\/h4\u003e\u003cp\u003eGarrett Motion is the world’s foremost turbocharger manufacturer, with a legacy spanning six decades and products trusted across Formula 1, WRC, IndyCar, and the full spectrum of road racing and drag racing. The G-Series II platform represents Garrett’s most advanced production turbo engineering, optimized for maximum efficiency and power density in both professional and enthusiast applications.\u003c\/p\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eWhat is the GRT938272-5003S?\u003c\/strong\u003e\u003cp\u003eThe GRT938272-5003S is the Garrett G-Series II G38-1000 supercore, a 62mm compressor inducer turbocharger assembly rated for 500 to 1,000 horsepower on 2.0L to 5.5L engines. It is the complete rotating assembly with compressor housing and requires a compatible turbine housing kit to become a functional turbocharger.\u003c\/p\u003e\u003cstrong\u003eWhat turbine housings are compatible with GRT938272-5003S?\u003c\/strong\u003e\u003cp\u003eThe G38-1000 supercore is compatible with Garrett G38 turbine housing kits: GRT757707-0037 (0.85 A\/R V-Band), GRT757707-0038 (0.95 A\/R V-Band), GRT757707-0039 (1.06 A\/R V-Band), GRT757707-0042 (0.85 A\/R T4 divided), GRT757707-0043 (0.95 A\/R T4 divided), and GRT757707-0044 (1.06 A\/R T4 divided). All turbine housings sold separately.\u003c\/p\u003e\u003cstrong\u003eWhat is the difference between G-Series I and G-Series II?\u003c\/strong\u003e\u003cp\u003eThe G-Series II platform features updated compressor aerodynamics offering improved pressure ratio capability and efficiency compared to the original G-Series. The G-Series II provides higher achievable boost and better compressor map width, especially useful in builds targeting the upper end of the power range.\u003c\/p\u003e\u003cstrong\u003eWill GRT938272-5003S work on my 2.0T engine?\u003c\/strong\u003e\u003cp\u003eYes, the G38-1000 is designed for 2.0L to 5.5L displacements. At maximum spool on a 2.0L, expect it to come into its power band at slightly higher RPM than a smaller frame turbo, making it best suited for builds targeting 600 horsepower or more where sustained peak power matters more than low-RPM response.\u003c\/p\u003e\u003cstrong\u003eDoes the G38-1000 require an external wastegate?\u003c\/strong\u003e\u003cp\u003eYes. All G38 series turbine housing kits are externally wastegated. An external wastegate is required and not included with GRT938272-5003S.\u003c\/p\u003e\u003cstrong\u003eIs the V-Band outlet on GRT938272-5003S compatible with GTX42 charge pipes?\u003c\/strong\u003e\u003cp\u003eYes. The V-Band compressor outlet on GRT938272-5003S measures 117.4mm (4.622 inch OD), which is identical to the GTX42, GTX45, and G42 models, enabling direct compatibility with charge pipes engineered for those platforms.\u003c\/p\u003e\u003cstrong\u003eWhat speed sensor kit should I use with the G38-1000?\u003c\/strong\u003e\u003cp\u003eGarrett’s G-Smart speed sensor kits PN 781328-0003 (street, with gauge) and 781328-0004 (professional, without gauge) are compatible with GRT938272-5003S. The machined port on the backplate accepts either kit for turbo speed monitoring.\u003c\/p\u003e\u003cstrong\u003eDoes this supercore work with reverse-rotation applications?\u003c\/strong\u003e\u003cp\u003eNo. GRT938272-5003S is standard rotation only. Reverse-rotation supercores are separate part numbers and are not cross-compatible with standard rotation turbine housings.\u003c\/p\u003e\u003ch4\u003eInstallation Overview\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eChoose a compatible G38 turbine housing kit based on your exhaust manifold flange (T4 divided or V-Band) and desired A\/R ratio\u003c\/li\u003e\n\u003cli\u003ePre-install AN6 oil and coolant feed\/return fittings before assembly\u003c\/li\u003e\n\u003cli\u003eMate turbine housing to supercore using supplied gasket kit, torquing fasteners to Garrett specifications\u003c\/li\u003e\n\u003cli\u003eConnect V-Band compressor outlet to intercooler inlet piping using a V-Band clamp\u003c\/li\u003e\n\u003cli\u003eInstall external wastegate on the exhaust manifold or turbine housing dump port\u003c\/li\u003e\n\u003cli\u003ePrime oil feed line at cranking RPM before first fire to protect ball bearing CHRA\u003c\/li\u003e\n\u003cli\u003eInitial run at idle for 5 or more minutes, checking oil and coolant connections for leaks before driving under boost\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Garrett","offers":[{"title":"Default Title","offer_id":46152048345167,"sku":"GRT938272-5003S","price":2029.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/ChatGPT_Image_Jul_23_2026_09_58_00_AM.png?v=1784817788","url":"https:\/\/www.blackopsautoworks.com\/products\/garrett-g38-1000-62mm-g-series-ii-supercore-grt938272-5003s","provider":"Black Ops Auto Works","version":"1.0","type":"link"}