Harmonic Damper Bolt Kit for Pontiac 350-455 cid

Harmonic Damper Bolt Kit for Pontiac 350-455 cidAs 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

Facilitates optimum sealing of gasket surfaces

ARP manufactures a variety of special application-specific bolt and stud kits

You can choose between black oxide finished 8740 chrome moly or corrosion-resistant stainless steel

and copy down the length of the fastener prior to and after installation

HIGH PERFORMANCE SERIESHigh Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing

Both models feature a large diameter

Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening

Now available for all popular applications

NOTE: Not to be used with OEM-style

Our kits come in 8470 or polished ARP Stainless and cover spacers up to 3

When the bolt hasstretched the specified amount

Finish 2: Polished