Moroso 60160 Moroso Chevrolet Big Block CN 5.3in Bore Space Timing PointerMoroso 60160 Moroso Chevrolet Big Block CN 5. 3in Bore Space Timing Pointer Timing Pointer, CN 5. 3" Bore Space Precision design allows for tighter fitment between damper and pointer, resulting in easier alignment and more accurate timing Slotted design allows for up to 4 degrees of adjustment Billet aluminum construction with black anodized finish Stainless steel mounting hardware included