12-Pt Head Stainless Intake Manifold Bolts for Ford 260-289-302, 351W, uses 3/8˝ socket

12-Pt Head Stainless Intake Manifold Bolts for Ford 260-289-302, 351W, uses 3/8˝ socketPrevent 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

they should never be re-used

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

A premium grade 8740 alloy chrome moly steel is used to manufacture ARP High Performance connecting rod bolts

the harmonic damper absorbs incredible amounts of kinetic energy

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

ARP quality delivers increasedpre-load clamping force and assures positive timing gear register

For example

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

Finish: Natural

These premium grade bolt and stud kits are engineered to properly engage the engine block threads and resist loosening

so it seats evenly and applies pressure on a full 360° circle

these hex nuts are available in most sizes to meet your needs