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Browse ARP performance parts and upgrades including engine fasteners, studs and hardware for high stress applications, with options suited to street, drag, drift, circuit and high horsepower builds.

5-Pack Bolt Kit, 12-Point Head Black Oxide

Advanced Headers
Original price $44.85 - Original price $44.85
Original price
$44.85
$44.85 - $44.85
Current price $44.85

3/8" UNF x 3.250" UHL With 3/8" Socket Head Part Number : AR742-3250 To compliment ARP "bulk" 5-pack chrome moly and stainless steel f...

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Original price $44.85 - Original price $44.85
Original price
$44.85
$44.85 - $44.85
Current price $44.85

Special Purpose Washer 3/8" I.D, 5/8" O.D .120 Thick (2-Pack) (AR200-8544)

ARP
Original price $4.72 - Original price $4.72
Original price
$4.72
$4.72 - $4.72
Current price $4.72

3/8" I.D, 5/8" O.D .120 Thick (2-Pack) Part Number : AR200-8544 A true high performance washer from ARP, available in a variety of siz...

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Original price $4.72 - Original price $4.72
Original price
$4.72
$4.72 - $4.72
Current price $4.72

Special Purpose Washer 1/2" I.D, 7/8" O.D .120" Thick with Chamfer, 10-Pack (AR200-8533)

ARP
Original price $23.57 - Original price $23.57
Original price
$23.57
$23.57 - $23.57
Current price $23.57

1/2" I.D, 7/8" O.D .120" Thick with Chamfer, 10-Pack Part Number : AR200-8533 A true high performance washer from ARP, available in a ...

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Original price $23.57 - Original price $23.57
Original price
$23.57
$23.57 - $23.57
Current price $23.57

5-Pack Bolt Kit, 12-Point Head Black Oxide 1/2" UNF x 1.000" UHL With 9/16" Socket Head (AR726-1000)

ARP
Original price $37.37 - Original price $37.37
Original price
$37.37
$37.37 - $37.37
Current price $37.37

1/2" UNF x 1.000" UHL With 9/16" Socket Head Part Number : AR726-1000 Now you can use premium quality ARP stainless steel or chrome mo...

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Original price $37.37 - Original price $37.37
Original price
$37.37
$37.37 - $37.37
Current price $37.37

Valve Cover Stud Kit, 12-Point Nut Black Oxide Aluminium Valve Covers 1/4-20 Thread x 1.500" OAL (14-Pack) (AR200-7614)

ARP
Original price $110.86 - Original price $110.86
Original price
$110.86
$110.86 - $110.86
Current price $110.86

fits Aluminium Valve Covers 1/4-20 Thread x 1.500" OAL (14-Pack) Part Number : AR200-7614 To ensure proper sealing of valve covers, AR...

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Original price $110.86 - Original price $110.86
Original price
$110.86
$110.86 - $110.86
Current price $110.86

5-Pack Bolt Kit, 12-Point Head S/S 3/8" UNF x 2.250" UHL With 3/8" Socket Head (AR713-2250)

ARP
Original price $55.32 - Original price $55.32
Original price
$55.32
$55.32 - $55.32
Current price $55.32

3/8" UNF x 2.250" UHL With 3/8" Socket Head Part Number : AR713-2250 To compliment ARP "bulk" 5-pack chrome moly and stainless steel f...

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Original price $55.32 - Original price $55.32
Original price
$55.32
$55.32 - $55.32
Current price $55.32

5-Pack Bolt Kit, 12-Point Head S/S 3/8" UNF x 1.750" UHL With 3/8" Socket Head (AR713-1750)

ARP
Original price $53.93 - Original price $53.93
Original price
$53.93
$53.93 - $53.93
Current price $53.93

3/8" UNF x 1.750" UHL With 3/8" Socket Head Part Number : AR713-1750 To compliment ARP "bulk" 5-pack chrome moly and stainless steel f...

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Original price $53.93 - Original price $53.93
Original price
$53.93
$53.93 - $53.93
Current price $53.93

5-Pack Bolt Kit, 12-Point Head S/S 3/8" UNF x 1.250" UHL With 3/8" Socket Head (AR713-1250)

ARP
Original price $40.83 - Original price $40.83
Original price
$40.83
$40.83 - $40.83
Current price $40.83

3/8" UNF x 1.250" UHL With 3/8" Socket Head Part Number : AR713-1250 To compliment ARP "bulk" 5-pack chrome moly and stainless steel f...

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Original price $40.83 - Original price $40.83
Original price
$40.83
$40.83 - $40.83
Current price $40.83

Main Stud Kit, 4-Bolt Main SB Chev Dart Little M With Iron Main Caps & Splayed Cap Bolts (AR234-5609)

ARP
Original price $213.67 - Original price $213.67
Original price
$213.67
$213.67 - $213.67
Current price $213.67

fits SB Chev Dart Little M With Iron Main Caps & Splayed Cap Bolts Part Number : AR234-5609 There are many important reasons to us...

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Original price $213.67 - Original price $213.67
Original price
$213.67
$213.67 - $213.67
Current price $213.67

Bellhousing To Engine Block Bolt Kit Gen III/LS Series, Black Oxide, 12-Point Head, M10 x 1.5, 1.375" UHL (AR134-0902)

ARP
Original price $66.36 - Original price $66.36
Original price
$66.36
$66.36 - $66.36
Current price $66.36

fits Gen III/LS Series, Black Oxide, 12-Point Head, M10 x 1.5, 1.375" UHL Part Number : AR134-0902 These premium grade bolt and stud k...

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Original price $66.36 - Original price $66.36
Original price
$66.36
$66.36 - $66.36
Current price $66.36

Valve Cover Bolt Kit, 12-Point Head Black Oxide Aluminium Covers 1/4-20 Thread x .812" UHL (14-Pack) (AR100-7508)

ARP
Original price $46.00 - Original price $46.00
Original price
$46.00
$46.00 - $46.00
Current price $46.00

fits Aluminium Covers 1/4-20 Thread x .812" UHL (14-Pack) Part Number : AR100-7508 To Ensure Proper Sealing Of Valve Covers, Arp Manuf...

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Original price $46.00 - Original price $46.00
Original price
$46.00
$46.00 - $46.00
Current price $46.00

Intake Manifold Bolt Kit, 12-Point Black Oxide Small Block Chev (AR134-2101)

ARP
Original price $54.86 - Original price $54.86
Original price
$54.86
$54.86 - $54.86
Current price $54.86

Small Block Chev Part Number : AR134-2101 Prevent Intake Manifold Leaks With Arp's Quality Fateners. They Are Rated At 170,000 Psi And...

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Original price $54.86 - Original price $54.86
Original price
$54.86
$54.86 - $54.86
Current price $54.86

M10 x 1.25 12-Point Nuts, 16mm Wrench 10 Pack (AR301-8355)

ARP
Original price $97.98 - Original price $97.98
Original price
$97.98
$97.98 - $97.98
Current price $97.98

10 Pack Part Number : AR301-8355 Available in a variety of sizes to suit your needs, all ARP 12-point nuts are constructed from 8740 c...

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Original price $97.98 - Original price $97.98
Original price
$97.98
$97.98 - $97.98
Current price $97.98

Head Stud Kit, 12-Point Nut Nissan SR20DE 2.0L DOHC (1991-01) M11 (Under Cut) (AR102-4701)

ARP
Original price $425.04 - Original price $425.04
Original price
$425.04
$425.04 - $425.04
Current price $425.04

fits Nissan SR20DE 2.0L DOHC (1991-01) M11 (Under Cut) Part Number : AR102-4701 It Is For Good Reason That Virtually Every Top Profess...

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Original price $425.04 - Original price $425.04
Original price
$425.04
$425.04 - $425.04
Current price $425.04

Bellhousing Bolt Kit, Hex Head Black Oxide SB Ford 289-302-351 Windsor (Manual Transmission) 7/16-14 Thread x 1.500"/2.250" UHL (AR154-0903)

ARP
Original price $56.81 - Original price $56.81
Original price
$56.81
$56.81 - $56.81
Current price $56.81

fits SB Ford 289-302-351 Windsor (Manual Transmission) 7/16-14 Thread x 1.500"/2.250" UHL Part Number : AR154-0903 These premium grade...

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Original price $56.81 - Original price $56.81
Original price
$56.81
$56.81 - $56.81
Current price $56.81

5-Pack Bolt Kit, Hex Head Black Oxide 3/8" UNC x 1.500" UHL With 3/8" Socket Head (AR652-1500)

ARP
Original price $33.46 - Original price $33.46
Original price
$33.46
$33.46 - $33.46
Current price $33.46

3/8" UNC x 1.500" UHL With 3/8" Socket Head Part Number : AR652-1500 Now you can use premium quality ARP stainless steel or chrome mol...

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Original price $33.46 - Original price $33.46
Original price
$33.46
$33.46 - $33.46
Current price $33.46

5-Pack Bolt Kit, 12-Point Head Black Oxide

Advanced Headers
Original price $77.05 - Original price $77.05
Original price
$77.05
$77.05 - $77.05
Current price $77.05

1/2" UNF x 3.500" UHL With 9/16" Socket Head Part Number : AR726-3500 Now you can use premium quality ARP stainless steel or chrome mo...

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Original price $77.05 - Original price $77.05
Original price
$77.05
$77.05 - $77.05
Current price $77.05

5-Pack Bolt Kit, Hex Head Black Oxide 7/16" UNC x 1.500" UHL With 7/16" Socket Head (AR653-1500)

ARP
Original price $40.82 - Original price $40.82
Original price
$40.82
$40.82 - $40.82
Current price $40.82

7/16" UNC x 1.500" UHL With 7/16" Socket Head Part Number : AR653-1500 Now you can use premium quality ARP stainless steel or chrome m...

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Original price $40.82 - Original price $40.82
Original price
$40.82
$40.82 - $40.82
Current price $40.82

5-Pack Bolt Kit, 12-Point Head S/S 3/8" UNC x 2.750" UHL With 3/8" Socket Head (AR613-2750)

ARP
Original price $55.54 - Original price $55.54
Original price
$55.54
$55.54 - $55.54
Current price $55.54

3/8" UNC x 2.750" UHL With 3/8" Socket Head Part Number : AR613-2750 Now you can use premium quality ARP stainless steel or chrome mol...

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Original price $55.54 - Original price $55.54
Original price
$55.54
$55.54 - $55.54
Current price $55.54

5-Pack Bolt Kit, 12-Point Head S/S 1/4" UNC x 3.500" UHL With 5/16" Socket Head (AR611-3500)

ARP
Original price $43.36 - Original price $43.36
Original price
$43.36
$43.36 - $43.36
Current price $43.36

1/4" UNC x 3.500" UHL With 5/16" Socket Head Part Number : AR611-3500 Now you can use premium quality ARP stainless steel or chrome mo...

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Original price $43.36 - Original price $43.36
Original price
$43.36
$43.36 - $43.36
Current price $43.36

5-Pack Bolt Kit, 12-Point Head S/S 1/4" UNC x 3.000" UHL With 5/16" Socket Head (AR611-3000)

ARP
Original price $41.75 - Original price $41.75
Original price
$41.75
$41.75 - $41.75
Current price $41.75

1/4" UNC x 3.000" UHL With 5/16" Socket Head Part Number : AR611-3000 What's more, you can't beat the gorgeous looks of ARP's speciall...

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Original price $41.75 - Original price $41.75
Original price
$41.75
$41.75 - $41.75
Current price $41.75

Intake Manifold Bolt Kit, Hex Head S/S FE Ford 390-428 (AR455-2002)

ARP
Original price $114.31 - Original price $114.31
Original price
$114.31
$114.31 - $114.31
Current price $114.31

fits FE Ford 390-428 Part Number : AR455-2002 Prevent intake manifold leaks with ARP's quality fasteners. They're nominally rated at 1...

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Original price $114.31 - Original price $114.31
Original price
$114.31
$114.31 - $114.31
Current price $114.31

5-Pack Bolt Kit, 12-Point Head S/S 5/16" UNC x 4.500" UHL With 3/8" Socket Head (AR612-4500)

ARP
Original price $60.60 - Original price $60.60
Original price
$60.60
$60.60 - $60.60
Current price $60.60

5/16" UNC x 4.500" UHL With 3/8" Socket Head Part Number : AR612-4500 Now you can use premium quality ARP stainless steel or chrome mo...

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Original price $60.60 - Original price $60.60
Original price
$60.60
$60.60 - $60.60
Current price $60.60

5-Pack Bolt Kit, 12-Point Head S/S 7/16" UNC x 2.000" UHL With 7/16" Socket Head (AR616-2000)

ARP
Original price $64.86 - Original price $64.86
Original price
$64.86
$64.86 - $64.86
Current price $64.86

7/16" UNC x 2.000" UHL With 7/16" Socket Head Part Number : AR616-2000 Now you can use premium quality ARP stainless steel or chrome m...

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Original price $64.86 - Original price $64.86
Original price
$64.86
$64.86 - $64.86
Current price $64.86

Frequently Asked Questions

What products from ARP are in this collection?
This collection groups ARP products around engine fasteners, studs and hardware for high stress applications, making it easier to shop that brand by application, fitment and build goal.
Is ARP a good choice for performance builds?
ARP is widely chosen for enthusiasts who want proven parts rather than guesswork. The right product still depends on your vehicle, power target and how the car is used.
How do I confirm ARP compatibility with my setup?
Check the product listing for vehicle, engine or universal fitment notes. For custom or high horsepower builds, confirm supporting mods, dimensions and connection types before ordering.
Do ARP parts need supporting upgrades or tuning?
Some do. Fuel, turbo, ignition, ECU and driveline parts often work best with the right supporting hardware and, where relevant, professional tuning or setup.
Why buy ARP parts from 1320 Motorsports?
We focus on proven performance parts for real builds, so the aim is to help you choose the right ARP product for your combination instead of piecing together a setup blind.