12-Pt Head Stainless Intake Manifold Bolts for Chevrolet 305-350 Tuned Port

12-Pt Head Stainless Intake Manifold Bolts for Chevrolet 305-350 Tuned PortPrevent 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

A polished finish makes them an enhancement to any carb

This is a premium steel that is processed to deliver superior strength and fatigue properties

Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading

they are the best on the market today

which gives themabout 2000% (that’s twenty times) better fatigue strength thanthose studs that are threaded prior to heat-treat (a very commonindustry practice)

ARP is continually developing additional diesel kits

Our special purpose washers are constructed from either premium chrome moly with a black oxide finish or polished ARP stainless steel and are hardened and parallel-ground

they’re nominally rated at 180

Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place

All hex nuts are rated 180

Unfortunately

to prevent galling and promote more consistent torque loading