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ARP rocker studs are concentric within .005˝, extra-large radius base offers greater resistance to flex. NOTE: To be used ONLY with ARP’s patented Perma-Loc™ adjusters. HIGH PERFORMANCE SERIES - 8740 chrome moly forgings, heat-treated to 180,000 psi, tip ground flush for optimum adjuster seating PRO SERIES - made of premium grade 8740 chrome moly steel, heat-treated to a tensile strength of 200,000 psi 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. NOTES: (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
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Didn't find the kit you were looking for?
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.900˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
100-7101
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.900˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
100-7121
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.800˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
135-7101
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.800˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
135-7121
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.900˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
200-7202
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Chevrolet LS Gen III/IV (non adjustable), excluding LS7
| Installed Height | 1.460˝ | | Adjuster Thread Length | 0.500˝ | | Adjuster Diameter-Pitch | 5/16-24 | | Screw-in Depth | 1.100˝ | | Screw-in Diameter-Pitch | M8 x 1.25 | | | | | | |
234-7207
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3/8 Rocker Arm Stud Kit
| Installed Height | 1.900˝ | | Adjuster Thread Length | 0.800˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 3/8-16 | | | | | | |
135-7102
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3/8 Rocker Arm Stud Kit
| Installed Height | 1.900˝ | | Adjuster Thread Length | 0.800˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 3/8-16 | | | | | | |
135-7122
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Chevy BB 496 (8100 series)
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.600˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | M10 x 1.5 | | | | | | |
135-7201
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7/16 Rocker Arm Stud Kit
| Installed Height | 2.350˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.850˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
135-7202
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Chevy BB 496 (8100 series)
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.600˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.750˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
135-7221
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7/16 Rocker Arm Stud Kit
| Installed Height | 2.350˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.850˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
135-7222
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.850˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.800˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7201
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7/16 Rocker Arm Stud Kit
| Installed Height | 2.000˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 1.3, .820˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7202
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7/16 Rocker Arm Stud Kit, exhaust only, 8 pc
| Installed Height | 2.000˝ | | Adjuster Thread Length | 0.700˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 1.650˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7203
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7/16 Rocker Arm Stud Kit, intake only, 8 pc
| Installed Height | 2.000˝ | | Adjuster Thread Length | 0.700˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.820˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7204
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7/16 Rocker Arm Stud Kit, 16 pc
| Installed Height | 2.000˝ | | Adjuster Thread Length | 0.700˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 1.3, .820˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7205
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7/16 Rocker Arm Stud Kit
| Installed Height | 2.000˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 1.650˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7206
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7/16 Rocker Arm Stud Kit
| Installed Height | 2.000˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.820˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
235-7207
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Chevrolet LT1 Gen V 6.2L
| Installed Height | 1.000˝ | | Adjuster Thread Length | 0.500˝ | | Adjuster Diameter-Pitch | 5/16-24 | | Screw-in Depth | 1.100˝ | | Screw-in Diameter-Pitch | M8 x 1.25 | | | | | | |
234-7208
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3/8 Rocker Arm Stud Kit (Note 2)
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.800˝ | | Adjuster Diameter-Pitch | 3/8-24 | | Screw-in Depth | 0.700˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
134-7101
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7/16 Rocker Arm Stud Kit
| Installed Height | 1.770˝ | | Adjuster Thread Length | 0.670˝ | | Adjuster Diameter-Pitch | 7/16-20 | | Screw-in Depth | 0.700˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
134-7103
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3/8 Rocker Arm Stud Kit (Note 6)
| Installed Height | 1.895˝ | | Adjuster Thread Length | 1.000˝ | | Adjuster Diameter-Pitch | 3/8-24 | | Screw-in Depth | 0.710˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
134-7104
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3/8 Rocker Arm Stud Kit (Note 2)
| Installed Height | 1.750˝ | | Adjuster Thread Length | 0.800˝ | | Adjuster Diameter-Pitch | 3/8-24 | | Screw-in Depth | 0.700˝ | | Screw-in Diameter-Pitch | 7/16-14 | | | | | | |
134-7121
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