Description: Description 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 extralarge 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 Specifications SpecificationBase Thread Size1/2-13 in.Rocker Arm Nut Thread Size7/16-20 in.Rocker Arm Stud Material8740 ChromolyGuideplate Locator ShankYesRocker Arm Nut Thread Length (in.)1.050 in.Effective Stud Length (in.)2.000 in.Base Thread Length (in.)1.025 in.QuantitySold as a set of 16.MakePontiacEngine FamilyPontiac V8Engine Sizes4.1L/251-7.5L/455Years1955-1981Cylinder Head Style (application)Stock configurationItem #ARP290-7201Mfg Part #290-7201 Powered by
Price: 121.18 USD
Location: Denver, Colorado
End Time: 2024-09-20T22:03:05.000Z
Shipping Cost: 0 USD
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Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: ARP
SKU: ARP290-7201
Manufacturer Part Number: 290-7201
Base Thread Size: 1/2-13 in.
Rocker Arm Nut Thread Size: 7/16-20 in.
Rocker Arm Stud Material: 8740 Chromoly
Guideplate Locator Shank: Yes
Rocker Arm Nut Thread Length (in.): 1.050 in.
Effective Stud Length (in.): 2.000 in.
Base Thread Length (in.): 1.025 in.
Quantity: Sold as a set of 16.
Make: Pontiac
Engine Family: Pontiac V8
Engine Sizes: 4.1L/251-7.5L/455
Years: 1955-1981
Cylinder Head Style (application): Stock configuration
