Ford SB 302 351 Windsor 50oz External Balanced Damper Harmonic Balancer SFI 18.1

Brand:	Speedmaster
Part Number:	PCE291.1016
Part Type:	Harmonic Balancer
Engine Balance:	External, 50 oz. imbalance
SFI Rating:	SFI 18.1
Degree Markings:	Yes
Degree Marking Range:	40 BTDC to 0 TDC
Outside Diameter (in):	6.400in.
Harmonic Balancer Material:	Steel
Harmonic Balancer Construction:	Elastomer
Harmonic Balancer Finish:	Black painted
Mounting Hardware Included:	No
Quantity:	Sold individually.
Notes:	Damper has bolt-on counterweight that is removable for 0 or neutral balance applications.

Speedmaster Harmonic dampers are manufactured from forged K1045 low carbon steel and tuned elastomer between the two layers of steel. These dampers feature a bonding process which adheres the elastomer to the i.d. of the inertia ring and the o.d. of the hub, utilizing a strong adhesive along with an improved elastomer to create a much stronger bond. They also feature clear, white, easy-to-read timing marks against a painted black background. The steel inertia ring rotates harmonically with the engine and absorbs the torsion vibration from the rotating assembly at any frequency and RPM. It extends the life of crankshaft and bearing which allows the engine to produce more power and torque. This damper is externally balanced; the term external balanced damper refers the 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. All dampers are tested to withstand 15 tons press force without separation or deterioration.