Harmonic Damper Bolt Kit for 4.6L & 5.4L Modular V8

Harmonic Damper Bolt Kit for 4.6L & 5.4L Modular V8As the crankshaft flexes and twists, the harmonic damper absorbs incredible amounts of kinetic energy. To ensure that the damperis locked in position, ARP has developed these ultra strong 190,000 psi bolts that let you exert maximum clamping force. Specialfeatures include 1 4? thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry ofstripping the head. Material: 8740 Chrome Moly Finish: Black

large underhead radius and rolled threads for the utmost in reliability

with handy 12-pointor standard hex heads

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

with threads rolled after heat treat to ensure the optimum fatigue strength

To ensure that the damperis locked in position

This prevents any unnecessary wear or damage to rotating

This helps prevent blown head gaskets

Not to be usedwith OEM-style

The Pro Series bolts

or if there is deformation

They’re nominally rated at 180

Camshaft positioning is critical on overhead cam engines and ARP makes sure that the cam towers are properly secured through use of these durable bolts and studs