BMW Internal Engine Parts for BMW 1 Series

VTT S55 Crank Bolt Capture - F8X S55 F3x N55

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T#:557934

Part#: VTT-S55-CBC

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$ 129.99 USD

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The S55 suffers from a weak point in its crankshaft. It has been reported that when increasing the power to the engine, the crank hub can move or spin slightly under an extreme load.

Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...

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T#:558795

Part#: VTT-CRANKHUB-1

Ships in 8 Business Days

$ 889.99 USD

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$ 889.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Spline Lock Crank Hub Solution W/ Complete Package - N55 S55 ...

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T#:18733532

Part#: VTT-CRANKHUB-6

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$ 986.99

This product was last offered at the strikethrough price on
06-28-2026

$ 939.99 USD

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$ 939.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Supertech Single Groove Exhaust Valve - Priced Each

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T#:21472889

Part#: BMEVI-1055S-HS

Ships in 5 Business Days

$ 55.99 USD

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Single Groove sodium filled exhaust valves for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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5mm Single Groove Valve Keeper - Set Of 24

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T#:21604314

Part#: KPR-5.0-7S-24

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Spline N55 S55 Lock Crank Hub Solution W/ Hardware Package

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T#:18733531

Part#: VTT-CRANKHUB-5

Ships in 10 Business Days

$ 880.99 USD

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$ 880.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Spline Lock Crank Hub Solution W/ Crank Bolt Capture - N54

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T#:18733527

Part#: VTT-CRANKHUB-2

Ships in 10 Business Days

$ 871.99 USD

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$ 871.99 USD

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Anyone with a modified N54 knows the risks involved. Upping the performance of any engine can come with some inherent risk; if we add more boost but not fuel, detonation will occur (or worse). Furthermore, improper installation, maintenance, or operation can turn a perfectly healthy engine into a paperweight. The worst failures, however, are the ones we don't plan for. When the engine simply can't handle the stresses its put under, or the design is such that it simply does not support extreme conditions. Enter the N54 crank hub. Under certain conditions, it likes to spin without warning, even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Vargas spent many months testing, and retesting this design, utilizing well over 10 different samples to come to the final production version. During testing, the final hub managed to break the testing rig before slipping. These have been bench-tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900WHP. Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and Turner Motorsport are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Supertech Forged Pistons - Set Of 6

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T#:21604329

Part#: P6-BMN55-84-T-6

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$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

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$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

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Supertech forged pistons are a great choice for performance engine builds! Bore: 84.00mm Over Size: STD Comp Ratio: 10.2:1 Dome dish: -10.4 Head CCs: 37cc Comp Height: 32.40mm Stroke: 89.60mm Skirt style: Slipper Design Rod Length: 141.35mm Pin Diam: 22mm Material: 4032 Application: All Motor / Turbo Ring part number: R84-GNH8400 (MUST BE PURCHASED SEPARATELY)

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Spline Lock Crank Hub Solution W/ Hardware Package - N54

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T#:18733526

Part#: VTT-CRANKHUB-4

Ships in 10 Business Days

$ 880.99 USD

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$ 880.99 USD

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Anyone with a modified N54 knows the risks involved. Upping the performance of any engine can come with some inherent risk; if we add more boost but not fuel, detonation will occur (or worse). Furthermore, improper installation, maintenance, or operation can turn a perfectly healthy engine into a paperweight. The worst failures, however, are the ones we don't plan for. When the engine simply can't handle the stresses its put under, or the design is such that it simply does not support extreme conditions. Enter the N54 crank hub. Under certain conditions, it likes to spin without warning, even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Vargas spent many months testing, and retesting this design, utilizing well over 10 different samples to come to the final production version. During testing, the final hub managed to break the testing rig before slipping. These have been bench-tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900WHP. Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and Turner Motorsport are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Spline Lock Crank Hub Solution

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T#:8061334

Part#: VTT-N55-CRANKHUB

Ships in 10 Business Days

$ 818.99 USD

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$ 818.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. The product comes with a 1-year unlimited mileage warranty from manufacturer defects.

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Vargas "Spline Lock" Crank Hub Solution - N54

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T#:558924

Part#: VTT-N54-CRANKHUB

Ships in 10 Business Days

$ 818.99 USD

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$ 818.99 USD

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Anyone with a modified N54 knows the risks involved. Upping the performance of any engine can come with some inherent risk; if we add more boost but not fuel, detonation will occur (or worse). Furthermore, improper installation, maintenance, or operation can turn a perfectly healthy engine into a paperweight. The worst failures, however, are the ones we don't plan for. When the engine simply can't handle the stresses its put under, or the design is such that it simply does not support extreme conditions. Enter the N54 crank hub. Under certain conditions, it likes to spin without warning, even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Vargas spent many months testing, and retesting this design, utilizing well over 10 different samples to come to the final production version. During testing, the final hub managed to break the testing rig before slipping. These have been bench-tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900WHP. Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and Turner Motorsport are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. The worst failures, however, are the ones we don't plan for. When the engine simply can't handle the stresses its put under, or the design is such that it simply does not support extreme conditions. Enter the N54 crank hub. Under certain conditions, it likes to spin without warning, even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Vargas spent many months testing, and retesting this design, utilizing well over 10 different samples to come to the final production version. During testing, the final hub managed to break the testing rig before slipping. These have been bench-tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900WHP. Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and Turner Motorsport are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. The product comes with a 1-year unlimited mileage warranty from manufacturer defects.

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VTT N54 “Spline Lock” CrankHub Solution Package W/ Crank Bolt Cap...

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T#:19395579

Part#: VTTCRANKHUBPKG

Ships in 10 Business Days

$ 934.99 USD

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$ 934.99 USD

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VTT is proud to offer the only complete N54 complete crank hub solution that does NOT require the crank to be drilled for pins. Our hub uses our proprietary “Spline Lock” technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). We spent many months testing, and retesting this design, utilizing well over 10 different samples to come to our final production version. During testing, our final hub managed to break our testing rig before slipping. These have been bench tested, and real-world tested on the VTT N54 race car spinning 8K RPM and making well over 900WHP. This technology means our hub installs the same as a stock hub, no drilling of the crank, which means MUCH less labor is involved and is reversible is ever wanting to be uninstalled leaving no holes in the crank. The “Spline Lock” is ONLY available with the VTT Crank bolt capture for the ULTIMATE Crank Hub solution for your BMW. These parts are designed to be used together, and the spline lock should not run without the CBC VTT “Spline Lock” Crank hubs are CNC manufactured from 440C tool Steel with a Rockwell rating of HRC60 for the ultimate in durability, and toughness. Hub Plus OEM bolt OEM Oil pump sprocket OEM oil sprocket retainer VTT Crank bolt capture

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Supertech Single Groove Intake Valve - Set Of 12

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T#:14783498

Part#: BMIVN-1055S-12

Ships in 5 Business Days

$ 310.99 USD

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Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

Supertech Titanium Valve Retainers - Intake - Set Of 12

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T#:21604322

Part#: RET-BMN54-TI-12

Ships in 6 Business Days

$ 197.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Exhaust - Set Of 12

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T#:21604321

Part#: RET-BMN54-TE-12

Ships in 7 Business Days

$ 197.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

N54 Spline Lock Crank Hub Solution With Complete Package

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T#:18733525

Part#: VTT-CRANKHUB-3

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$ 939.99 USD

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Anyone with a modified N54 knows the risks involved. Upping the performance of any engine can come with some inherent risk; if we add more boost but not fuel, detonation will occur (or worse). Furthermore, improper installation, maintenance, or operation can turn a perfectly healthy engine into a paperweight. The worst failures, however, are the ones we don't plan for. When the engine simply can't handle the stresses its put under, or the design is such that it simply does not support extreme conditions. Enter the N54 crank hub. Under certain conditions, it likes to spin without warning, even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines that press into the crank and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Vargas spent many months testing, and retesting this design, utilizing well over 10 different samples to come to the final production version. During testing, the final hub managed to break the testing rig before slipping. These have been bench-tested, and real-world tested on the VTT N54 race car spinning 8K RPM, and making well over 900WHP. Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and Turner Motorsport are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Supertech Single Groove Exhaust Valve - Set Of 12

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T#:14816646

Part#: BMEVI-1055S-HS-1

Ships in 4 Business Days

$ 660.99 USD

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Single Groove sodium filled exhaust valve set for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

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T#:21604308

Part#: SPRKFE20N54BE

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Conical Spring Kit - Set Of 24

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T#:21604309

Part#: SPRKFE20N54BE2

Ships on Jul 24, 2026

$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 88 @ 36.5 Open Pressure: 160 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 7.25 Kit spring: SPR-FE20BE-2 Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Exhaust Valve - Sodium Filled - Std Size

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T#:21505756

Part#: BMEVI-1054S-HS

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$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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$ 55.99

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Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Performance Conical Valve Spring - Sold Each

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T#:21472894

Part#: SPR-FE20BE

In Stock

$ 19.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.99 USD

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$ 19.99

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Exhaust Valve - Sodium Filled - Oversize

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T#:21505757

Part#: BMEVI-1054S-HS-1

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$ 55.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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$ 55.99

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Exhaust Valve Set - Sodium Filled - Oversize

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T#:21505765

Part#: BMEVI1054SHS-1KT

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$ 660.99 USD

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Head Diam: 28.50m (+0.5mm) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 114.9mm Stem Diam: 5.95mm

Intake Valve - Black Nitride - Oversize

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T#:21505753

Part#: BMIVN-1054S-1

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$ 25.99 USD

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$ 25.99 USD

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Head Diam: 31.9mm (+0.5mm) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Intake Valve - Black Nitride

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T#:21505752

Part#: BMIVN-1054S

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$ 25.99

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06-08-2026

$ 23.99 USD

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$ 25.99

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Forged Connecting Rods - Sold Each

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T#:21604327

Part#: CR-BMN55-H144.35

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$ 198.99

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05-03-2026

$ 184.99 USD

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$ 198.99

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Supertech forged rods are a great choice for performance engine builds! These rods come with ARP 2000 hardware and are designed for high powered N55/S55 applications. H-Beam design Forged 4340 alloy Center to center: 144.35mm Be bore: 53.6mm Be width: 20.88 Pe bore: 22mm full float Pe width: 20.88mm tapered ARP 2000 - 3/8" x 1.600" bolts

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Intake Valve Set - Black Nitride - Std Size

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T#:21505754

Part#: BMIVN-1054SKT

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$ 310.99 USD

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Head Diam: 31.40mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 106.7mm Stem Diam: 4.96mm

Supertech Titanium Valve Retainers - Exhaust - Sold Each

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T#:21604320

Part#: RET-BMN54-TE

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Intake - Sold Each

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T#:21604319

Part#: RET-BMN54-TI

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Performance Conical Valve Spring - Set Of 24

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T#:21604325

Part#: SPR-FE20BE-2-24

Ships in 8 Business Days

$ 494.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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Performance Conical Valve Spring - Sold Each

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T#:21604306

Part#: SPR-FE20BE-2

Ships in 8 Business Days

$ 20.99 USD

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Qty

$ 20.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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Performance Conical Valve Spring - Set Of 24

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:21604324

Part#: SPR-FE20BE-24

Ships in 8 Business Days

$ 471.99 USD

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Qty

$ 471.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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