Speedmaster®

Chevy BBC 454 Race Series 6 3/4" Ext. Balanced Harmonic Damper Balancer SFI Appr

5 Reviews
MPN: PCE291.1076 UPC: 840136534914
Available Extended Warranty Eligible
US $160.70

In Stock - Ships within 24 hrs

Available: 59

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Specs

Brand:Speedmaster
Part Number:PCE291.1076
Part Type:Harmonic Balancers
Product Line:Race Series
  
Engine Balance:External(Bolt On Weight)
Safety Rating:SFI 18.1
Degree Markings:Yes
Degree Marking Range:60 BTDC to 0 TDC
Outside Diameter (in):6.750 in.
Harmonic Balancer Material:Steel
Harmonic Balancer Construction:Elastomer
Harmonic Balancer Finish:Black painted
Mounting Hardware Included:No
Quantity:Sold individually.

Description

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.

What SFI 18.1 Certified Means
Section 18.1 refers to Crankshaft Hub Harmonic Dampers. Article 3.0 Construction, dictates that the damper shall be constructed in such a manner that the inertia devices shall not become disengaged during use For inertia disc style dampers, the containment device must cover a minimum of 50 percent of the cavity containing the disc. The thickness of the containment material must be a minimum of 0.062 inch steel or 0.180 inch aluminum. Article 5.1.3 B Testing Procedure mandates that The damper shall be driven to a rotational speed between 12,500 and 13,500 rpm and maintained at that level for one hour. Furthermore, the steel of a SFI certified Fluidampr housing must meet a minimum 40,000psi yield strength and 60,000psi tensile strength under testing.

Brand Information



Speedmaster has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. The team has shared all the finest moments in the numerous accolades for its people, its products, and its approach. Speedmaster is also one of the rare companies to produce its own products, where majority items are entirely developed and manufactured in its workshops. The ultimate token of precision, Speedmaster is the world’s only major parts manufacturer to equip cars from Standard replacement to Top Fuel Dragsters.

In 1979, the company was founded with Pete’s Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which en

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.


Ratings & Reviews

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As Described And Well Packed For Delivery Great Seller

As Described And Well Packed For Delivery Great Seller

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Great Ebayer Showed Up On Time And As Expected.

Great Ebayer Showed Up On Time And As Expected.

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Fast Postage, As Described, Great Too Deal With, Thanks

Fast Postage, As Described, Great Too Deal With, Thanks

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Good Deal, Would Buy Again, Thank You!!

Good Deal, Would Buy Again, Thank You!!

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No Reviews yet

As Described And Well Packed For Delivery Great Seller

As Described And Well Packed For Delivery Great Seller