Fits: Big Block B/RB Engine

Balance: Internal - External with bolt on weight

Degree Markings: Yes

Outside Diameter (in.): 7.300

Crankshaft Pulley Bolt Hole Quantity: Six

Keyway Quantity: One Harmonic

Balancer Material: Cast iron

Harmonic Balancer Construction: Steel

Harmonic Balancer Color: Black epoxy coated

Mounting Hardware Included: No

Quantity: Sold individually.

High Performance Sportsman harmonic dampers are cast from nodular iron, and are suitable for engines generating up to 400 hp.

Unlike most OEM dampers, the hub and ring are splined to prevent radial movement of the outer ring. These dampers are 30 percent stronger than OEM dampers made from gray iron. With the combination of top-quality and affordability, these dampers really raise the bar in the high performance industry. Features and specs include: * Ideal for street rebuilds * Accurate crank bore for a proper pressed-fit * Externally balanced dampers include removable counterweights * Available in black with laser-etched timing marks

* Not SFI-certified