Overview Reviews Product Description Specifications Harmonic Balancer Bolt 16 mm x 2.00 Thread 4.325 in Long 1-1/16 in 12 Point Head Chromoly Black Oxide Except GM LS7 GM LS-Series Each Product Videos Product Reviews Write a Review Write a Review × ARP ARP LS-Series Balancer Bolt Except LS7 ARP234-2503 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *