12-Pt Head Stainless Intake Manifold Bolts for Chevrolet Gen III/IV LS Series small block, valley co

12-Pt Head Stainless Intake Manifold Bolts for Chevrolet Gen III/IV LS Series small block, valley coPrevent intake manifold leaks with ARPs quality fasteners. Theyre nominally rated at 180,000 psi and precision machined for optimum thread engagement. Wide underhead flange and companion washers provide even load distribution. Precision rolled threads prevent galling while promoting more consistent torque loading. Facilitates optimum sealing of gasket surfaces. Available in choice of black oxide finish chrome moly or corrosion resistant stainless

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

All of them are substantially better than the stock OEM and most aftermarket bolts

each stud is centerless ground to makeit as close to perfectly concentric as possible

Available inblack oxide finished chrome moly or rust-proofstainless steel

An extralarge radius base offers greater resistance to flex

the fastener experts at ARP have developed the Pro Series ring gear bolts

They’re made from ARP Stainless and are virtually impervious to corrosion

Measure the fastener prior to starting

all ARP main bolts feature a reduced renching head

They are 5/16˝ wrenching and

there’s not a better stud setupon the market today

These inexpensive fasteners can literally save your engine