Harmonic Balancer Bolt w/ Thick Washer, GM LS1/LS6 4.8L-7.0L, 12-Point , 27mm Wrenching, 180,000 PSI, M16 x 2.0 x 4.330" Under Head Length. Fits all versions of the GM LS engine - except the LS7/LS9/LSA.. Earl's harmonic balancer bolts are made from high quality chrome moly steel with 180,000 PSI rating. The extra-tall 12-point bolt head won't strip or allow the socket to slip-off when turning over the engine. Includes extra thick large diameter washer. Bolt and washer are black oxide coated.. Torque Harmonic Balancer Bolt to 235 ft-lbs. This bolt fits all versions of the LS Series engines except the LS7/LS9/LSA.
