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BMW M135i F20/F21 320hp N55B30 2012-2015
Manufacturers
BMW M135i F20/F21 320hp N55B30 2012-2015
Exhaust Supertech Valve Stem Gaskets forBMW / TOYOTA B58 N53 N54 N55 S55BMW 135i M135i M140i 1M E8X F2XBMW M235i M240i M2 CS M2 COMPetition F22 F87 G42BMW 325i 330i 335i 340i M340i M3/CS/COMPET E9X F30 F80 G20BMW 435i 440i M4/COMPET/GTS F32 F82BMW 523i 525i 528i 530i 535i 540i E60 F10 F90 G30BMW 630i 640i E63 F13BMW Z4 3.0i M40i E89 G29TOYOTA Supra/GR
Set of 6 forged 4340 steel connecting rods for BMW N55B30 / S55B30.Brands: ZRP, Manley Compatibility: 335i (F30), M2 (F87), M3 (F80), M4 (F82) Engine codes: N55B30, S55B30 Bolts included: ARP 2000 or ARP L19
JE, Manley, Wossner, Diamond forged pistons: bores 84-85 mm, RV 9.0-10.5:1, pin 22 mm. Detailed specs, N55/S55 & BMW vehicle compatibility, OEM references included.
Intake Valve Stem Gaskets SupertechBMW / TOYOTA B58 N53 N54 N55 S55BMW 135i M135i M140i 1M E8X F2XBMW M235i M240i M2 CS M2 COMPetition F22 F87 G42BMW 325i 330i 335i 340i M340i M3/CS/COMPET E9X F30 F80 G20BMW 435i 440i M4/COMPET/GTS F32 F82BMW 523i 525i 528i 530i 535i 540i E60 F10 F90 G30BMW 630i 640i E63 F13BMW Z4 3.0i M40i E89 G29TOYOTA Supra/GR
Reinforced Cometic head gasket, in MLX. Sold individually.Brand: CometicEngines: N55B30Bore: 85 mmThicknesses: 0.81 to 1.52 mmReplaces: 11 12 7 599 212
High-quality Reinforced Exhaust Valves BMW N55B30 S55B30 (Reinforced Exhaust Valves BMW N55B30 S55B30) for reliable fitment and performance.
High-quality Reinforced Intake Valves BMW N55B30 S55B30 (Reinforced Intake Valves BMW N55B30 S55B30) for reliable fitment and performance.
High-quality Reinforced Valve Springs BMW N53B30 N54B30 N55B30 S55B30 (Reinforced Valve Springs BMW N53B30 N54B30 N55B30 S55B30) for reliable fitment and performance.
Sport air filter DINAN BMW 135i F2x M235i/M2 F22/F87 335i/435i F3x/F8x N55B30
Kit of 24 half-moon valve collets for SUPERTECH / FERREA valves, 6mm diameter:Number of grooves of your choiceReferences: KPR-6S-7-24, KPR-VW6-T-24
Trimetal Crankshaft Bearings ACL Race / King RacingBMW N54 N55 S55BMW 135i / M135i / 1M E82 F20/F21 2007-BMW M235i / M2 / M2 CS / M2 COMPetition F22 F87 2013-2021BMW 335i / M3 / M3 CS / M3 COMPetition E9X F80 2006-2018BMW 435i / M4 / M4 COMPetition / M4 GTS F32 F82 2013-2020BMW 535i F10 2009-2016BMW 640i F13 2011-2017BMW Z4 E89 2009-2016References:...
Set of 12 trimetal connecting rod half-bearings for BMW N54B30 N55B30 S55B30.Brands and treatments: ACL Race, ACL Calico and King GPC Compatibility: E82, E90, F20, F22, F30, F32, F80, F82 Engine codes: N54B30, N55B30, S55B30 Available sizes: standard to +0.50 mm, increased-clearance versions (HX, STDX)
Kit of 24 valve collets for SUPERTECH / FERREA valves, 5mm diameter: Number of grooves of your choiceReference: KPR-5.0-7S-24
The BMW M135i F20/F21 built from 2012 to 2015 runs the N55B30 straight six, and this page covers its cylinder head, where hard use is won or lost.
Valves come as FERREA stainless with three grooves and as SUPERTECH with one groove, the SUPERTECH exhaust being offered in sodium-filled Inconel, a material that carries heat out through the stem. Performance springs come from SUPERTECH and FERREA, stem seals from SUPERTECH, and collets are available in 5 and 6mm.
The head gasket is a COMETIC MLX of 85.0mm, from 0.81 to 1.52mm, or an ATHENA O-ring of 86.0mm in 1.50mm.
