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7.25" Damper for 318/340/360 Chrysler. Small block Chryslers utilize one of four different dampers. One is neutral balance and the other three are externally balanced with different weights. We offer one damper that fits the neutral balance engine "as is" along with three included counterweights to fit each of the other three engines. The instructions specify which weight to use and they also supply a tube of thread sealant for C’weight bolts.
PowerForce+Plus Race Dampers are made from bulletproof 1045 steel. These dampers are designed to be installed on race engines that may rev over 10,000 rpm. Optimum damping occurs in the 6500 to 7500 rpm range. The machine work on these dampers is second to none and the critical fit tolerances and balance are held more closely than OEM. All externally balanced dampers feature bolt-in counterweights. This feature allows for swapping weights between dampers (Ford) or adding them to internal balanced dampers (Chevy) if you change applications. The basic damper in any family is the same with either a different counterweight (Ford) or an added counterweight (Chevy). This provides an unlimited amount of flexibility. Plus, you can't buy a more accurately balanced damper.
90012 Damper includes three different counterweights and will fit the following applications:
- All internally balanced 318 V8 standard and Magnum, all internally balanced 273 and 340 engines w/forged cranks. No counterweight is used with any of these applications.
- 340 externally balanced 1972-'73 engines w/cast crank. Use supplied 91014 counterweight.
360 externally balanced 1993-'97 engines w/cast crank. Use supplied 91013 counterweight.
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!
|Degree Marking Range
||60 BTDC to 0 TDC
|Harmonic Balancer Construction
|Harmonic Balancer Finish
|Harmonic Balancer Material
|Mounting Hardware Included
||Includes 3 different counter weights and instructions to fit all small block Mopar engines.
|Outside Diameter (in)
||Professional Products PowerForce Plus Harmonic Dampers