Harmonic Damper Bolt Kit for Chevrolet Gen III/IV LS Series small block (except LS7)

Harmonic Damper Bolt Kit for Chevrolet Gen III/IV LS Series small block (except LS7)As 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

Fittings are available with female pipe threads

in conjunction with aftermarket I-beam rods

Drive pins are rated 190

Both models feature a large diameter

For example

L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering a clamp load at 260

For this reason

We highly recommend using a stretch gauge when installingrod bolts and other fasteners where it is possible to measure thelength of the bolt after tightening

This helps prevent blown head gaskets

including use of a premium grade chrome moly alloy

ARP’s heat-treated 8740 chrome moly wheel studs are a much-needed replacement for any car engaged in oval track or drag racing competition

They’re made from premium grade aerospace chrome moly and centerless ground to precise diameter