Supertech Valve Set Compatible with M50, M52, M54, S50, S52

Old price: €518.24
€473.99

Complete set of 24 Supertech STD engine valves for all / Compatible with M50, M52, M54, S50, S52 BMW 24V 2.8L-3.0L (M50 M52 M54 S50 S52)

***6mm stem, will not fit cylinder heads equipped with 7mm stem***

*Single groove valve locks are supplied with this kit *

This listing includes Supertech part numbers:

BMIVN-1030S x 12 (intake)

BMEVN-1030S x 12 (exhaust)

KPR-6S-7 x 48 (single groove keepers)

Head Diameter: 33.0mm (intake) 
                          30.5mm (exhaust)

Stem Diameter: 5.97mm (intake)
                           5.96mm (exhaust)

Valve Length: 106.1mm (intake) 
                         105.65mm (exhaust)

Material: Black Nitrided


BLACK NITRIDE:
This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications.

The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum).
Surface finish is smoother than with chromed stems, having less friction between stem and guide.

Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).

Higher rpm's engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide  friction.

The nitrided layer is adhered to the base material at a microscopic level, so does not "flake" or break when the valves bend due to impacts with the pistons.

The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem.

All valves are swirl polished, have stem undercut and a hardened tip.

NotesYearMakeModelTrimEngine
2006BMW330CiAllAll
2006BMW330xiAllAll
2006BMWX33.0i Sport Utility 4-DoorAll
2006BMWZ4Coupe 3.0si Coupe 2-Door3.0L 2996CC l6 GAS DOHC Naturally Aspirated
2006BMWZ4Roadster 3.0i Convertible 2-Door3.0L 2996CC l6 GAS DOHC Naturally Aspirated
2006BMWZ4Roadster 3.0si Convertible 2-Door3.0L 2996CC l6 GAS DOHC Naturally Aspirated
2005BMW330CiAllAll
2005BMW330CiM Coupe 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2005BMW330xiAllAll
2005BMW530iAllAll
2005BMWX33.0i Sport Utility 4-DoorAll
2005BMWX53.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2005BMWZ43.0i Convertible 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2004BMW330CiAllAll
2004BMW330xiAllAll
2004BMW530iAllAll
2004BMWX33.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2004BMWX53.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2004BMWZ43.0i Convertible 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2003BMW330CiAllAll
Notes
Important part details
YearMakeModelTrimEngine
2003BMW330xiAllAll
2003BMW530iAllAll
2003BMWX53.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2003BMWZ43.0i Convertible 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2002BMW330CiAllAll
2002BMW330xiAllAll
2002BMW530iAllAll
2002BMWX53.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2002BMWZ3Coupe Coupe 2-DoorAll
2002BMWZ3Roadster Convertible 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2001BMW330CiAllAll
2001BMW330xiAllAll
2001BMW530iAllAll
2001BMWX53.0i Sport Utility 4-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2001BMWZ3Coupe Coupe 2-DoorAll
2001BMWZ3Roadster Convertible 2-Door3.0L 2979CC l6 GAS DOHC Naturally Aspirated
2000BMW328CiBase Coupe 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
2.8L & 3.0L only2000BMW528iBase Sedan 4-DoorAll
2000BMWZ3Coupe Coupe 2-DoorAll
2000BMWZ3Roadster Convertible 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
Notes
Important part details
YearMakeModelTrimEngine
1999BMW328iBase Convertible 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
1999BMW328isBase Coupe 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
2.8L & 3.0L only1999BMW528iBase Sedan 4-DoorAll
1998BMW328isBase Coupe 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
2.8L & 3.0L only1998BMW528iBase Sedan 4-DoorAll
1997BMW328isBase Coupe 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
2.8L & 3.0L only1997BMW528iBase Sedan 4-DoorAll
1996BMW328isBase Coupe 2-Door2.8L 2793CC l6 GAS DOHC Naturally Aspirated
1995BMWM3Base Coupe 2-Door3.0L 2990CC l6 GAS DOHC Naturally Aspirated
1995BMWM3Lightweight Coupe 2-Door3.0L 2990CC l6 GAS DOHC Naturally Aspirated
1994BMWM3Base Coupe 2-Door3.0L 2990CC l6 GAS DOHC Naturally Aspirated
Product tags