ARP Rocker Arm Studs Product images may differ from actual product appearance. If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in - you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true. Lengths are exact - designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. NOTE: Not to be used with OEM-style, self-locking nuts. To be used with ARP's patented Perma-Loc adjusters High Performance Series: Made of 8740 chrome moly forgings and heat-treated to 180,000 psi. Excellent for E.T. Bracket Racing, limited rule oval track competition and street use. Tip ground flush for optimum adjuster seating. Pro Series: Designed for competition applications, ARP's Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi. Application Codes 1) These parts have a shank portion under hex to locate guide plate. 2) Fits most stock SBChevy with 3/8 screw-in studs 3) Fits most stock SBChevy with 7/16 screw-in studs 4) Fits most stock BBChevy with 7/16 screw-in studs 5) Fits most SBFord with 7/16 screw-in studs 6) Fits most SBFord with 3/8 screw-in studs IMPORTANT TECH NOTE It is highly advisable to determine what the optimum rocker arm stud length is for your particular application. This is especially true when "long" pushrods and valves are employed - you should raise the "installed height" of the rocker arm to compensate for the longer-than-stock components.

070-100-7121

With roller rockers and girdles Typical Ford small block B: 1.900" C: .750" D: 1.000" E: 7/16"-20 F: 7/16"-14 App. Code: 5 View this item

$5.99 Ships

070-100-7221

GM 4.3L Vortec V6 B: 1.595" C: .800" D: .580" E: 3/8"-24 F: M10 x 1.50 View this item

$9.99 Ships 02/23/12

070-134-7121

3/8" typical small block application B: 1.750" C: .700" D: .800" E: 3/8"-24 F: 7/16"-14 App. Code: 2 View this item

$5.99 Ships

070-134-7123

7/16" typical small block application B: 1.770" C: .700" D: .670" E: 7/16"-20 F: 7/16"-14 View this item

$5.99 Ships 02/23/12

070-134-7124

3/8" with roller rockers B: 1.895" C: .710" D: 1.000" E: 3/8"-24 F: 7/16"-14 App. Code: 6 View this item

$5.99 Ships

070-134-7221

Chevrolet late model Vortec B: 1.750" C: .600" D: .850" E: 3/8"-24 F: M8 x 1.25 View this item Fits Applications

$15.99 Ships

070-135-7121

7/16" typical big block application B: 1.750" C: .800" D: .850" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item Fits Applications

$5.99 Ships

070-135-7122

Mark V B: 1.900" C: .750" D: .700" E: 7/16"-20 F: 3/8"-16 View this item Fits Applications

$11.99 Ships 02/23/12

070-135-7221

Chevrolet big block 496 cid (8100 series) B: 1.750" C: .750" D: .600" E: 7/16"-20 F: M10 x 1.50 View this item

$14.99 Ships 02/23/12

070-135-7222

Chevrolet big block (aluminum heads) B: 2.350" C: .850" D: .850" E: 7/16"-20 F: 7/16"-14 View this item

$13.99 Ships 02/23/12

070-100-7101

With roller rockers and girdles Typical Ford small block B: 1.900" C: .750" D: 1.000" E: 7/16"-20 F: 7/16"-14 App. Code: 5 View this item Fits Applications

$38.99 Ships

070-100-7201

GM 4.3L Vortec V6 B: 1.595" C: .800" D: .580" E: 3/8"-24 F: M10 x 1.50 View this item

$45.99 Ships

070-134-7101

3/8" typical small block application B: 1.750" C: .700" D: .800" E: 3/8"-24 F: 7/16"-14 App. Code: 2 View this item Fits Applications

$42.99 Ships

070-134-7103

7/16" typical small block application B: 1.770" C: .700" D: .670" E: 7/16"-20 F: 7/16"-14 View this item Fits Applications

$42.99 Ships

070-134-7104

3/8" with roller rockers B: 1.895" C: .710" D: 1.000" E: 3/8"-24 F: 7/16"-14 App. Code: 6 View this item Fits Applications

$42.99 Ships

070-134-7201

Chevrolet late model Vortec B: 1.750" C: .600" D: .850" E: 3/8"-24 F: M8 x 1.25 View this item

$76.99 Ships 02/23/12

070-135-7101

7/16" typical big block application B: 1.750" C: .800" D: .850" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item Fits Applications

$42.99 Ships

070-135-7102

Mark V B: 1.900" C: .750" D: .700" E: 7/16"-20 F: 3/8"-16 View this item

$42.99 Ships

070-135-7201

Chevrolet big block 496 cid (8100 series) B: 1.750" C: .750" D: .600" E: 7/16"-20 F: M10 x 1.50 View this item

$75.99 Ships 02/23/12

070-135-7202

Chevrolet big block (aluminum heads) B: 2.350" C: .850" D: .850" E: 7/16"-20 F: 7/16"-14 View this item

$70.99 Ships

070-200-7201

With roller rockers and girdles Typical Ford small block B: 1.900" C: .750" D: 1.000" E: 7/16"-20 F: 7/16"-14 App. Code: 5 View this item

$70.99 Ships

070-200-7202

7/16" typical small block application B: 1.900" C: .750" D: .850" E: 7/16"-20 F: 7/16"-14 App. Code: 4 View this item

$72.99 Ships

070-234-7201

3/8" typical small block application B: 1.750" C: .700" D: .800" E: 3/8"-24 F: 7/16"-14 App. Code: 2 View this item Fits Applications

$76.99 Ships

070-234-7202

7/16" typical small block application B: 1.770" C: .700" D: .670" E: 7/16"-20 F: 7/16"-14 View this item Fits Applications

$76.99 Ships

070-234-7205

With roller rockers and stud girdle B: 1.900" C: .860" D: .830" E: 7/16"-20 F: 7/16"-14 View this item

$104.99 Ships 02/23/12

070-234-7206

With roller rockers and stud girdle B: 1.900" C: .850" D: .850" E: 7/16"-20 F: 7/16"-14 View this item Fits Applications

$104.99 Ships

070-235-7201

7/16" typical big block application B: 1.750" C: .800" D: .850" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item Fits Applications

$76.99 Ships

070-235-7202

Dart aluminum heads, 16 pieces B: 2.000" C: 1.3, .820" D: 1.000" E: 7/16"-20 F: 7/16"-14 View this item Fits Applications

$113.99 Ships

070-235-7203

Aluminum heads, exhaust studs only, 8 pcs. B: 2.000" C: 1.650" D: .700" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$56.99 Ships 02/23/12

070-235-7204

Aluminum heads, intake studs only, 8 pieces B: 2.000" C: .820" D: .700" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item Fits Applications

$56.99 Ships

070-235-7205

Dart aluminum, 16 pieces B: 2.000" C: 1.3, .820" D: .700" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$113.99 Ships 02/23/12

070-235-7206

Aluminum heads, exhaust studs only, 8 pieces B: 2.000" C: 1.650" D: 1.000" E: 7/16"-20 F: 7/16"-14 View this item

$51.99 Ships 02/23/12

070-235-7207

Aluminum heads, intake, 8 pieces B: 2.000" C: .820" D: 1.000" E: 7/16"-20 F: 7/16"-14 View this item

$56.99 Ships

070-254-7201

SVO 351 cid, with roller rockers and girdle B: 3.000" C: .950" D: 1.750" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$113.99 Ships 02/23/12

070-290-7201

7/16" with 1/2" coarse, Pontiac (1964 & later) B: 2.000" C: 1.025" D: 1.050" E: 7/16"-20 F: 1/2"-13 View this item Fits Applications

$84.99 Ships

070-334-7201

With roller rockers and stud girdle B: 1.900" C: .660" D: .830" E: 7/16"-20 F: 7/16"-14 App. Code: 3 View this item

$104.99 Ships 02/23/12

070-334-7202

With roller rockers and stud girdle B: 2.100" C: .850" D: .800" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$104.99 Ships

070-334-7203

With roller rockers and stud girdle B: 2.100" C: .750" D: .800" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$104.99 Ships

070-334-7204

With roller rockers and stud girdle B: 2.000" C: .750" D: .800" E: 7/16"-20 F: 7/16"-14 App. Code: 1 View this item

$104.99 Ships

070-354-7202

SVO 351 cid, with roller rockers and girdle B: 3.000" C: .660" D: 1.930" E: 7/16"-20 F: 7/16"-14 View this item

$113.99 Ships 02/23/12

070-354-7203

SVO 351 cid, with roller rockers and girdle B: 2.800" C: .800" D: 1.500" E: 7/16"-20 F: 7/16"-14 View this item

$113.99 Ships 02/23/12

070-354-7204

SVO 351 cid, with roller rockers and girdle B: 2.700" C: .850" D: 1.300" E: 7/16"-20 F: 7/16"-14 View this item

$109.99 Ships 02/23/12