6.4" Damper for '79 & earlier SB Ford (28.4 oz. in.)
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6.4" Damper for '79 & earlier SB Ford (28.4 oz. in.)

Part #: 80006
List Price: $151.98
Our Price: $75.99
You Save: $75.99

6.4" Damper for '79 & earlier SB Ford (28.4 oz. in.) Our SB Ford dampers are the most universal dampers made. Featuring three sets of timing marks and both 3 and 4-bolt accessory pulley patterns, these dampers will fit every SB Ford engine. The early style harmonic damper fits all 1980 and earlier 289/302/351W/351C/351M/400 engines which utilize the 28.4 oz. in. c'weight. The bolt-in weight can be removed if required.

PowerForce+Plus great new street dampers are made from extremely tough nodular iron and are suitable for all street applications and mild (non SFI) racing applications. These dampers are designed to be safely revved to as high as 6,000 rpm.

PowerForce+Plus dampers are of the highest quality and are precision machined to tolerances tighter than OEM. They come with a gloss black paint finish and white timing marks for easier reading. Externally balanced dampers feature bolt-in counterweights that are precision balanced. Counterweights are included with all external dampers. All Ford dampers have three sets of timing marks to cover nearly every small block damper application. 
Note: 80006/80007 Ford dampers have  3 and 4-bolt accessory bolt patterns.

Spacer's? 3 or 4 bolt?  How to determine Which one? Special Application Information

What is Bonding?When dampers are bonded, what does this mean? It means that the elastomer (rubber) that is sandwiched between the ring and the hub is bonded, or vulcanized, to metal. This is similar to the process used to bond the metal motor mounts to the rubber vibration isolaters used in these mounts.  This greatly increases the safety of the damper as most stock, and many inexpensive aftermarket dampers, are just pressed together and under heavy duty applications, the ring can rotate, moving your TDC mark from the true position, or fly off the engine. And that is very bad!
Balance Style 28.4 oz. imbalance
Brand Professional Products
Degree Marking Range 40 BTDC to 0 TDC
Degree Markings Yes
Engine Balance Internal/External
Harmonic Balancer Construction Elastomer
Harmonic Balancer Finish Black anodized
Harmonic Balancer Material Nodular iron
Mounting Hardware Included No
Notes Has removable external weight, can be converted to internal balance.
Outside Diameter (in) 6.400 in.
Part Type Harmonic Balancers
Product Line Professional Products PowerForce Harmonic Dampers
Quantity Sold individually.
Safety Rating Not SFI-approved