High performance engines need high performance balancers. Professional Product's street and race dampers won't fail like stock ones can. Race dampers are SFI approved and good for 10000 rpms. Both the street and race dampers are black with easy-to-read, white timing marks.
1982-95 balancers include a precision spacer for proper pulley alignment and includes the counter-weight for 5.0L applications. Interchangeable counter weight for 351W and early 302's sold seperately.
1982-93 5.0L engines use 50oz balancers and flywheels because they are "externally balanced" crankshafts. Internally balanced (1981 and older small blocks and ALL 351w) engines use 28oz. Remember, always use the balancer and flywheel combination that corresponds with your year of engine!
* * * NOTE: Depending on your existing crank pulley mounting hardware, Longer bolts may be needed when installing pulley to balancer. * * *