Part number 201-4S38HSK
ARP cylinder head stud kit
BMW M5 - 3.6 3.8 (S38B36, S38B38)

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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 |

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Product detailed specification |
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Model number |
BMEVI-1006/L |
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Head diameter |
32.00mm |
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Stem diameter |
6.95mm |
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Length |
125.00mm |
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Material |
Inconel 751 / Nimonic |
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Fits for |
BMW M3, M5 - 2.3, 2.5, 3.6, 3.8 (S14B23, S14B25, S38B36, S38B38) |

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Product detailed specification |
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Model number |
BMIVN-1006/L |
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Head diameter |
37.00mm |
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Stem diameter |
6.98mm |
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Length |
123.00mm |
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Material |
Black nitrided stainless steel |
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Fits for |
BMW M3, M5 - 2.3, 2.5, 3.6, 3.8 (S14B23, S14B25, S38B36, S38B38) |

Spring data:
Seat pressure - 90lbs @ 35.5mm
Open (lift) pressure - 230lbs @ 13.0mm
Spring coil bind - 21.50mm
Max lift - 14.80mm
Rate - 11.50mm
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:
Double springs - 24 pcs. SPR-H1005D-S14
Titanium retainers - 24 pcs. RET-BMS14-T1
Seats - 24 pcs. SEAT-H1002-S14

