Part number BMEVN-1030 (STD)
Supertech black nitrided stainless steel exhaust valve
BMW 4-6 cylinder engines - 1.8 2.5 2.8 3.0 (S42 USA, M42, S50/S52 USA, M50, M52, M54)
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Product detailed specification |
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Model number |
BMEVN-1030 |
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Head diameter |
30.50mm |
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Stem diameter |
5.96mm |
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Length |
105.65mm |
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Material |
Black nitrided stainless steel |
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Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |

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Product detailed specification |
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Model number |
BMEVN-1031S |
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Head diameter |
31.50mm |
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Stem diameter |
5.96mm |
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Length |
105.65mm |
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Material |
Black nitrided stainless steel |
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Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |

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Product detailed specification |
|
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Model number |
BMIVN-1030 |
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Head diameter |
33.00mm |
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Stem diameter |
5.97mm |
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Length |
106.10mm |
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Material |
Black nitrided stainless steel |
|
Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |

|
Product detailed specification |
|
|
Model number |
BMIVN-1031S |
|
Head diameter |
34.00mm |
|
Stem diameter |
5.97mm |
|
Length |
106.10mm |
|
Material |
Black nitrided stainless steel |
|
Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |

|
Product detailed specification |
|
|
Model number |
BMEVI-1030S |
|
Head diameter |
30.50mm |
|
Stem diameter |
5.96mm |
|
Length |
105.65mm |
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Material |
Inconel |
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Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |

Athena Racing 330 series Cooper Ring cylinder head gasket.
For specific high horsepower applications, engine performance can be significantly improved by using Athena Cooper Ring gaskets, that are supplied with INOX steel ring. This technology outperforms conventional fire ring solutions.
Cooper Rings are oversize (also fits for oversize bores).
Part number: 330012R
Gasket thickness: 2.00mm
Bore size: 84.50mm
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Part number starting with 330 |
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Athena advantages |
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Reinforced material |
Asbestos free composite raw material OE approved |
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Stainless steel ring (AISI304) |
Separate stainless steel rings assure maximum sealing around cylinder bore also on NOS and/or turbo charged engine where boost is over 2 bars. No head and block machining required |
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Silicon beading |
Silicon-based beading is applied on critical areas to improve sealing around all cooling water and oil passages |

Spring data:
Seat pressure - 94lbs @ 35.70mm
Open (lift) pressure - 209lbs @ 10mm
Spring coil bind - 20.70mm
Rate - 11.50lbs/mm
Max lift - 15.00mm
Outer spring outer diameter: 29.65mm
Outer spring inner diameter: 21.85mm
Inner spring outer diameter: 20.50mm
Inner spring inner diameter: 15.50mm
Set includes:
Dual springs: 24 pcs. SPR-H1005D-BM
Titanium retainers: 24 pcs. RET-AU5VE-T1
Seats: 24 pcs. SEAT-BM60

|
Product detailed specification |
|
|
Model number |
BMIVN-1030S |
|
Head diameter |
33.00mm |
|
Stem diameter |
5.97mm |
|
Length |
106.10mm |
|
Material |
Black nitrided stainless steel |
|
Fits for |
BMW - 1.8 2.5 2.8 3.0 (S42,M42,M50,S50,M52,S52,M54) |