Click On Image To Enlarge
6-3/4" Black Harmonic Balancer Cover Chevy S/B by Proform
These patented harmonic balancer covers offer improved readability, more stable Top Dead Center indication and timing accuracy, enhanced appearance for a previously ignored underhood area, and the elimination of timing tapes which are inevitably flung off.
Using this cover improves timing accuracy because over time the etched outer inertia ring of a typical harmonic balancer may slip in relation to the center hub of the balancer, causing the etched markings to provide an inaccurate indication of Top Dead Center for the #1 piston.
Mounted directly through the center hub, this cover eliminates the affect of any outer inertia ring slippage. Aluminum. U.S. Patent 5,675,078.
|Degree Marking Range
||60 BTDC to 0 TDC-A
|Harmonic Balancer Diameter (in)
||6 3/4 in.
||Harmonic Balancer Covers
||Proform Harmonic Balancer Covers
Other customers who purchased this product also purchased: