ARP Auto Racing Cylinder Head Stud 2014605
Engine Compatibility
BMW L4 2.3L
Finish
Black Oxide
Material
Chromoly Steel
Nut Type
12-Point
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ARP Auto Racing Cylinder Head Stud
Cylinder Head Stud; For Use With BMW 2.5L SOHC Inline 6 Cylinder; 12 Point Nuts With Undercut Studs; Black Oxide; Chrome Moly
MPN: 2014605
It is for good reason that virtually every top professional engine builder relies on ARP Pro series head stud for their all out competition power plant. Simply stated, there’s not a better stud setup on the market today. For opener, ARP use a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is placed vertically in special rack and precisely heat treated to 200,000 PSI. Following heat treat, each stud is centerless ground to make it as close to perfectly concentric as possible. It’s important to note that lesser quality stud are not even centerless ground, the material is thread rolled in bar stock form. Because ARP stud are manufactured to such exacting tolerance, you will note that gasket and cylinder head literally glide into position and are perfectly aligned, something that won’t happen with inferior quality head stud. ARP stud are thread rolled after heat treat, which give them about 1000 Percent (that’s ten time) better fatigue strength than those stud that are threaded prior to heat treat. It cost a lot more to do it this way, because it tough on tooling, but the result are well worth the extra effort. You will also note that ARP offer specially undercut stud for several engine. This procedure (done only to the shorter stud) more equalize the "stretch" of both stud, which make for a more consistent clamping force and one that compensate for head gasket compression when the cylinder head are installed. This help prevent blown head gasket and assure optimum engine sealing! Premium quality heat treated 8740 chrome moly steel head stud kit are available for most every domestic and import application. You won’t find a better quality stud on the market from any other source. Look for ARP stamped on each stud as your assurance of quality. Clearly, they are the best on the market today, and the favorite of leading professional engine builder in all form of racing.
Engine Compatibility: BMW L4 2.3L
Nut Type: 12-Point
Finish: Black Oxide
Material: Chromoly Steel
Features
- Use A Premium Grade 8740 Alloy That Is Rated Far Superior To Aircraft Quality
- Stud Is Placed Vertically In Special Rack And Precisely Heat Treated To 200,000 PSI
- Centerless Ground To Make It As Close To Perfectly Concentric As Possible
- Thread Rolled After Heat Treat, Which Give Them About 2000 Percent (That’s Twenty Time) Better Fatigue Strength Than Those Stud That Are Threaded Prior To Heat Treat
- Limited 90 Day Warranty
| Specifications of ARP Auto Racing Cylinder Head Stud 2014605 | |
| Engine Compatibility | BMW L4 2.3L |
| Finish | Black Oxide |
| Material | Chromoly Steel |
| Nut Type | 12-Point |
1988 BMW M3
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