Hex Head Stainless Intake Manifold Bolts for Ford 390-428 cid FE Series

Hex Head Stainless Intake Manifold Bolts for Ford 390-428 cid FE SeriesPrevent 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

these knurls cut deep into the bolt material

A “must” for any serious engine builder

you will note that gaskets and cylinder headsliterally glide into position and are perfectly aligned – somethingthat won’t happen with inferior quality head studs

This eliminates the thread “movement” common to others

while the bolt kits come with washers

PROFESSIONAL SERIESAll Pro Series bolts are cold-forged to ensure molecular integrity

ARP has introduced a line of premium quality weld-in bungs

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

(inside diameter) chamfers

unique oil pan studs

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate the need for valve train removal during cylinder head retorquing

the more power available to you