Mopar Chrysler BB 383 440 Chrome Fluid Harmonic Balancer Damper

Brand:	Speedmaster
Part Number:	PCE291.1031
Part Type:	Harmonic Balancer
Engine Balance:	Internal
Safety Rating:	Not SFI-approved
Degree Markings:	Yes
Degree Marking Range:	30 BTDC to 10 ATDC
Outside Diameter (in):	7.250 in.
Harmonic Balancer Material:	Steel
Harmonic Balancer Construction:	Fluid
Harmonic Balancer Finish:	Chrome
Mounting Hardware Included:	No
Quantity:	Sold individually.

Speedmaster race fluid Harmonic dampers are manufactured from forged K1045 low carbon steel and filled with high viscosity silicone fluid. A nylon ring and the nylon position guides allow the steel inertia ring to rotate freely inside the housing. The steel inertia ring rotates harmonically with the engine and absorbs the torsion vibration from the rotating assembly at any frequency and RPM. It thus extends the life of crankshaft and bearing and allows the engine to produce more power and torque. All dampers are tested to 12,500 RPM for explosion proof. They also feature clear, easy-to-read timing marks. This damper is internal balanced; the term internal balanced damper refers to the lack of any built in weight or offset in the casting. When identifying your existing damper, (balancer) you must look on the backside. This is not visible if the damper is mounted on the engine. If your damper has no offset in the casting or weight, then you have an internal, (neutral) style damper. If you do see the offset in the casting or a weight, you have what is classified as an external damper. They are perfectly balanced, hence the term neutral.