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It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground - the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned - something that won't happen with inferior quality head studs. (More Below) |
| Part # | Small Block Chevrolet | Price | |
|---|---|---|---|
| 234-4304 | SB Chevy 14 Deg Olds head stud kit | $211.09 | |
| 234-4504 | SB Chevy 14 Deg Olds head stud kit | $195.73 | |
| 234-4704 | SB Chevy 14 Deg Olds head stud kit | $226.38 | |
| 234-4108 | SB Chevy 18 Deg raised port head stud kit | $177.70 | |
| 234-4508 | SB Chevy 18 Deg raised port head stud kit | $184.82 | |
| 234-4708 | SB Chevy 18 Deg raised port head stud kit | $215.99 | |
| 234-4307 | SB Chevy 18 Deg standard head stud kit | $205.27 | |
| 234-4707 | SB Chevy 18 Deg standard head stud kit | $215.99 | |
| 234-4107 | SB Chevy 18 Deg standard port head stud kit | $177.70 | |
| 234-4721 | SB Chevy 18 Deg, 3/8 in. holes 12pt undercut head stud kit | $220.79 | |
| 234-4015 | SB Chevy 7/16 in.-3/8 in. stepped head stud kit | $193.96 | |
| 234-4213 | SB Chevy alum Bowtie splayed head stud kit | $227.09 | |
| 234-4725 | SB Chevy Bowtie Block w/14 Deg Pro Action head stud kit | $240.84 | |
| 234-4503 | SB Chevy Brodix -12 & 18 Deg head stud kit | $193.90 | |
| 234-4703 | SB Chevy Brodix -12 & 18 Deg head stud kit | $224.39 | |
| 234-4305 | SB Chevy Brodix Pontiac standard head stud kit | $207.94 | |
| 234-4506 | SB Chevy Brodix-Pontiac raised head stud kit | $190.51 | |
| 234-4505 | SB Chevy Brodix-Pontiac standard head stud kit | $192.26 | |
| 234-4036 | SB Chevy Dart 18 Deg II-Gen. steel block head stud kit | $194.61 | |
| 234-4502 | SB Chevy Dart Buick head stud kit | $184.74 | |
| 234-4702 | SB Chevy Dart Buick head stud kit | $217.71 | |
| 234-4109 | SB Chevy Dart II cast iron head stud kit | $170.21 | |
| 234-4509 | SB Chevy Dart II head stud kit | $184.82 | |
| 234-4709 | SB Chevy Dart II head stud kit | $215.99 | |
| 234-4102 | SB Chevy Dart-Buick head stud kit | $168.59 | |
| 234-4302 | SB Chevy Dart-Buick head stud kit | $199.73 | |
| 134-4001 | SB Chevy hex head stud kit | $175.30 | |
| 234-4317 | SB Chevy LS1 pro-series '04 12pt head stud kit | $287.98 | |
| 234-4105 | SB Chevy Pontiac Brodix head stud kit | $176.59 | |
| 234-4106 | SB Chevy Pontiac Brodix head stud kit | $175.02 | |
| 234-4705 | SB Chevy Pontiac-Brodix head stud kit | $213.75 | |
| 234-4706 | SB Chevy Pontiac-Brodix raised head stud kit | $213.75 | |
| 234-4433 | SB Chevy Pro Action undercut head stud kit | $221.09 | |
| 234-4333 | SB Chevy Pro Action w/aluminum block head stud kit | $192.39 | |
| 234-4722 | SB Chevy SB2 head stud kit | $214.63 | |
| 234-4324 | SB Chevy w/-12 w/aluminum block | $204.55 | |
| 234-4104 | SB Chevy w/14 Deg Olds head stud kit | $179.75 | |
| 234-4103 | SB Chevy, w/-12 Brodix head stud kit | $178.13 | |
| 234-4123 | SB Chevy, w/-12 Brodix hd w/alum block, hex head stud kit | $177.82 | |
| 234-4303 | SB Chevy, w/-12 Brodix18 Deg head stud kit | $209.25 | |
| 234-4306 | SB Chevy, w/Pontiac Brodix raised head, head stud kit | $214.70 | |
| 234-4301 | SB Chevy 12pt head stud kit | $206.40 | |
| 234-4308 | SB Chevy 18 Deg raised 12pt head stud kit | $205.27 | |
| 234-4322 | SB Chevy 18 Deg w/ 3/8 in. holes head stud kit | $233.95 | |
| 234-4315 | SB Chevy 7/16 in.-3/8 in. stepped 12pt head stud kit | $215.72 | |
| 234-4332 | SB Chevy Brodix Dart Sportsman heads, 12pt hsk | $202.53 | |
| 234-4602 | SB Chevy Brodix, Dart Sportsman heads, 12pt undercut hsk | $211.59 | |
| 234-4312 | SB Chevy Brodix-canted valve 12pt head stud kit | $198.75 | |
| 234-4336 | SB Chevy Dart 18 Deg II-Gen. steel block 12pt head stud kit | $209.43 | |
| 234-4309 | SB Chevy Dart II 12pt head stud kit | $205.27 | |
| 234-4316 | SB Chevy LS1 pro-series thru '03 12pt head stud kit | $324.23 | |
| 234-4334 | SB Chevy Pro Action 12pt head stud kit | $192.39 | |
| 234-4335 | SB Chevy Pro Action 14 Deg 12pt head stud kit | $192.39 | |
| 234-4710 | SB Chevy Rodeck alum blck w/18 Deg Chevy hds 12pt hsk | $245.95 | |
| 234-4711 | SB Chevy Rodeck alum blck w/Brod cntd valve hds 12pt hsk | $243.09 | |
| 234-4601 | SB Chevy undercut 12pt head stud kit | $209.99 | |
| 234-4310 | SB Chevy w/18 Deg Rollover Brodix 12pt head stud kit | $190.66 | |
| 234-4321 | SB Chevy, 18 Deg w/ raised intake casting and 64 hsk | $210.55 | |
| 234-4311 | SB Chevy, w/-12 rollover Brodix angle mill MX, head stud kit | $176.52 | |
| 234-4720 | SB Chevy, w/Bowtie alum and cast blck, undercut hsk | $231.67 | |
| 234-4320 | SB Chevy, w/Bowtie alum and cast block, head stud kit | $216.78 | |
| 234-4507 | SB Chevy 18 Deg undercut hex head stud kit | $184.82 | |
| 234-4402 | SB Chevy Brodix Dart Sportsman heads, hex undercut hsk | $188.53 | |
| 234-4110 | SB Chevy LS1 pro-series hex head stud kit | $297.44 | |
| 234-4401 | SB Chevy undercut hex head stud kit | $185.18 | |
| 134-4002 | SB Chevy, w/Brodix Dart Sportsman heads, hex head stud kit | $177.11 | |
| Part # | Big Block Chevrolet | Price | |
| 135-4001 | BB Chevy hex head stud kit | $180.97 | |
| 235-4401 | BB Chevy undercut head stud kit | $190.83 | |
| 235-4201 | BB Chevy 12pt head stud kit | $207.78 | |
| 235-4601 | BB Chevy undercut 12pt head stud kit | $217.69 | |
| 135-4002 | BB Chevy 409 hex head stud kit | $214.83 | |
| 235-4202 | BB Chevy 409 head stud kit | $210.02 | |
| 235-4110 | BB Chevy Bowtie heads head stud kit | $180.40 | |
| 235-4310 | BB Chevy Bowtie 12pt head stud kit | $188.01 | |
| 235-4103 | BB Chevy Late Bowtie, Dart head, head stud kit | $182.25 | |
| 235-4503 | BB Chevy Dart-head undercut head stud kit | $190.83 | |
| 235-4303 | BB Chevy Dart 12pt head stud kit | $210.02 | |
| 235-4703 | BB Chevy Dart undercut 12pt head stud kit | $221.44 | |
| 235-4106 | BB Chevy Bowtie, Dart Merlin exh hsk - 8 STUDS ONLY | $67.89 | |
| 235-4306 | BB Chevy Bowtie, Dart Mrln exh hsk - 8 STUDS ONLY | $74.58 | |
| 235-4102 | BB Chevy Brodix head stud kit | $182.25 | |
| 235-4502 | BB Chevy Brodix undercut head stud kit | $190.83 | |
| 235-4302 | BB Chevy Brodix 12pt head stud kit | $210.02 | |
| 235-4702 | BB Chevy Brodix undercut 12pt head stud kit | $221.44 | |
| 235-4018 | BB Chevy w/Edelbrock Performer RPM head stud kit | $176.11 | |
| 235-4518 | BB Chevy w/Edelbrock Performer RPM undercut hsk | $186.03 | |
| 235-4318 | BB Chevy w/Edelbrock Performer RPM 12pt hsk | $197.44 | |
| 235-4718 | BB Chevy w/Edelbrock Performer RPM hsk | $207.47 | |
| 235-4019 | BB Chevy w/Edelbrock Victor head stud kit | $177.34 | |
| 235-4519 | BB Chevy w/Edelbrock Victor undercut head stud kit | $186.35 | |
| 235-4319 | BB Chevy w/Edelbrock Victor 12pt head stud kit | $199.29 | |
| 235-4719 | BB Chevy w/Edelbrock Victor head stud kit | $207.91 | |
| 235-4107 | BB Chevy Pontiac Pro Stock head stud kit | $236.49 | |
| 235-4507 | BB Chevy w/Pontiac Pro Stock head stud kit | $264.40 | |
| 235-4307 | BB Chevy Pontiac Pro Stock 12pt head stud kit | $261.83 | |
| 235-4707 | BB Chevy w/Pontiac Pro Stock head stud kit | $266.08 | |
| 235-4104 | BB Chevy symmetrical port head stud kit | $212.61 | |
| 235-4504 | BB Chevy symmetrical port head stud kit | $224.16 | |
| 235-4304 | BB Chevy spread port head stud kit | $246.61 | |
| 235-4704 | BB Chevy spread port head stud kit | $260.18 | |
| 135-4005 | BB Chevy 7/16 in. w/alum block head stud kit | $195.64 | |
| 235-4505 | BB Chevy w/alum block 7/16 in. head stud kit | $205.88 | |
| 135-4205 | BB Chevy 7/16 in. w/alum block head stud kit | $216.30 | |
| 235-4705 | BB Chevy w/alum block 7/16 in. head stud kit | $238.70 | |
| 135-4006 | BB Chevy 1/2 in. w/alum block head stud kit | $223.82 | |
| 235-4506 | BB Chevy w/alum block 1/2 in. head stud kit | $234.04 | |
| 135-4206 | BB Chevy 1/2 in. w/alum block head stud kit | $277.29 | |
| 235-4706 | BB Chevy w/alum block 1/2 in. head stud kit | $295.78 | |
| 235-4112 | BB Chevy Dart Big Chief head stud kit | $244.08 | |
| 235-4512 | BB Chevy Dart Big Chief head stud kit | $254.33 | |
| 235-4312 | BB Chevy Dart Big Chief head stud kit | $273.41 | |
| 235-4712 | BB Chevy Dart Big Chief head stud kit | $283.64 | |
| 235-4109 | BB Chevy Olds DRCE head stud kit | $204.91 | |
| 235-4509 | BB Chevy w/Olds DRCE head stud kit | $215.16 | |
| 235-4309 | BB Chevy Olds DRCE 12pt head stud kit | $226.38 | |
| 235-4709 | BB Chevy w/Olds DRCE head stud kit | $249.60 | |
| 235-4114 | Mark V, w/Brodix heads, hex head stud kit | $182.25 | |
| 235-4514 | Mark V, w/Brodix heads, hex undercut head stud kit | $190.83 | |
| 235-4314 | Mark V, w/Brodix heads, 12pt head stud kit | $195.34 | |
| 235-4714 | Mark V, w/Brodix heads, undercut 12pt head stud kit | $204.27 | |
| 235-4113 | Mark V, w/Dart heads, hex head stud kit | $182.25 | |
| 235-4513 | Mark V, w/Dart heads, hex undercut head stud kit | $190.83 | |
| 235-4313 | Mark V, w/Dart heads, 12pt head stud kit | $193.87 | |
| 235-4713 | Mark V, w/Dart heads, undercut 12pt head stud kit | $198.32 | |
| 235-4108 | Mark V, w/Edelbrock heads, hex head stud kit | $182.25 | |
| 235-4508 | Mark V, w/Edelbrock heads, hex undercut head stud kit | $190.83 | |
| 235-4308 | Mark V, w/Edelbrock heads, 12pt head stud kit | $199.06 | |
| 235-4708 | Mark V, w/Edelbrock heads, undercut 12pt hsk | $221.44 | |
| 235-4016 | BB Chevy w/Merlin head, head stud kit | $179.94 | |
| 235-4316 | BB Chevy Merlin - World 12pt head stud kit | $187.71 | |
| 235-4716 | BB Chevy Merlin - World 12pt undercut head stud kit | $204.60 | |
| 235-4320 | BB Chevy Brodix 14.5° head stud kit | $245.36 | |
| 135-4301 | BBC w/Brdx alum block w/Sonny Lenard 14.5° Pro Stock head,PS head hsk | $252.87 | |
| 135-4302 | BBC w/Brodix alum block fits BB1,2,2t,2x,2extra,3,4,4extra,5 heads hsk | $266.50 | |
| 135-4303 | BBC w/Brodix alum block w/Dart Pro 1s or 360s heads hsk | $266.50 | |
| 135-4304 | BBC w/Brodix alum block w/Big Duke/Big Chief heads hsk | $266.50 | |
| Part # | V6 Chevrolet | Price | |
| 233-4003 | Chevy V6 2.8L 60° M11 head stud kit | $100.27 | |
| 233-4303 | Chevy V6 2.8L 60° M11 12pt head stud kit | $106.22 | |
| 233-4001 | Chevy V6 90° head stud kit | $126.18 | |
| 233-4401 | Chevy V6 head stud kit | $142.80 | |
| 233-4301 | Chevy V6 12pt head stud kit | $138.38 | |
| 233-4601 | Chevy V6 12pt undercut head stud kit | $148.50 | |
| 233-4108 | Chevy V6 w/18° raised port head stud kit | $132.22 | |
| 233-4508 | Chevy V6 w/18° raised port head stud kit | $140.56 | |
| 233-4308 | Chevy V6 w/18° raised port head stud kit | $144.51 | |
| 233-4708 | Chevy V6 w/18° raised port head stud kit | $161.83 | |
| 233-4107 | Chevy V6 w/18° standard port head stud kit | $132.22 | |
| 233-4507 | Chevy V6 w/18° standard port head stud kit | $140.56 | |
| 233-4307 | Chevy V6 w/18° standard port head stud kit | $144.51 | |
| 233-4707 | Chevy V6 w/18° standard port head stud kit | $161.83 | |
| 233-4104 | Chevy V6 14° Olds head stud kit | $129.60 | |
| 233-4504 | Chevy V6 14° Olds head stud kit | $145.89 | |
| 233-4304 | Chevy V6 14° Olds head stud kit | $148.21 | |
| 233-4704 | Chevy V6 14° Olds head stud kit | $169.23 | |
| 233-4102 | Chevy V6 w/Pontiac Runner head stud kit | $128.36 | |
| 233-4502 | Chevy V6 w/Pontiac Runner head stud kit | $147.72 | |
| 233-4302 | Chevy V6 w/Pontiac Runner head stud kit | $140.70 | |
| 233-4702 | Chevy V6 w/Pontiac Runner head stud kit | $165.99 | |
| Part # | Inline 4- and 6-Cyl Chevrolet | Price | |
| 131-4002 | GMC Vega 140 head stud kit | $91.57 | |
| 131-4001 | Chevy 4-cylinder hex head stud kit | $100.27 | |
| 131-4201 | Chevy 4-cylinder 12pt head stud kit | $126.50 | |
| 132-4001 | Chevy 6-cylinder '62 & up hex head stud kit | $114.59 | |
| 132-4201 | Chevy Inline 6, '62 & up 12pt head stud kit | $144.53 | |
| 231-4701 | GM 2.2L ECOTEC head stud kit | $137.51 | |
| Part # | Diesel Chevrolet | Price | |
| 130-4062 | GMC 6.2L diesel head stud kit | $177.94 |
ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.
You will also note that ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the "stretch" of both studs, which makes for a more consistent clamping force - and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!
Premium quality heat-treated 8740 chrome moly steel head stud kits are available for most every domestic and import applications. 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.