Aeroflow timing pointers make quick and easy work of adding a timing pointer to your LS1 series engine. Timingpointers play a crucial role to verify timing prior to tuning giving valuable info for a tuner or when starting your engine up on a new build.These direct fit billet CNC-machined LS timing pointers are adjustable with brackets to suit both a 6.75" and 7.5" diameter harmonic balancers. These LS timing pointers are positioned in such a way to clear engine accessories and allow optimal viewing spot forsetting timing in or out of the car. The timing point features a slotted adjustment to precisely dial in your timing. Designed to specifically fit LS1 belt lines finished in either blackor silver anodised options.