High Perf. 2-pack Rocker Arm Studs for Chevrolet big block 496 cid (8100 series)

High Perf. 2-pack Rocker Arm Studs for Chevrolet big block 496 cid (8100 series)Higher 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. 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

You’ll note that the studs have a radiused bullet nose that serves to locate the pan rails

000 psi and precision machined for optimum thread engagement

heat-treated prior to thread rolling and machining

Nuts not included

They’re made from 8740 chrome moly steel

The stainless has the added advantage of being rust and corrosion resistant

Available in choice of black oxide finish chrome moly or corrosion resistant stainless steel

When the bolt hasstretched the specified amount

If there is a permanent increase of

Prevent intake manifold leaks with ARP’s quality fasteners

000 psi forthe 8740 material and 220

They’re made from premium grade aerospace chrome moly and centerless ground to precise diameter