This Small Block Chrysler Harmonic Balancer exceeds SFI 18.1 ratings and is designed specifically for High Performance Chryslers.

BB and SB MoPars have the same size crankshaft- This can fit a BB MoPar if you want a 7"  Balancer 

Stock bolt pattern and spacing for 340 Mopar with Steel Crank. Internally balanced only. Will fit cast crank 340 and 360 but will not have stock spacing.

 Flying Magnet conversion will fit drivers side only.  Fits 331-354-392- Chrysler and 325 Dodge Hemi 

The double keyway option requires that the factory or aftermarket crankshaft be removed from the engine and a second keyway cut into the snout of the crankshaft. DO NOT run a double keyed damper on a crankshaft without the double keys. Failure to the damper hub can happen without the supporting key in the broached keyway slot. The dual keyway option is for Supercharged or Extreme Duty Applications (typically over 750 rwhp). Without the double key modification your crankshaft in these high horsepower applications can lead to the failure of the damper hub and/or the single keyway which results in damage to the damper and the crankshaft snout.

Get rid of your separate Crank Trigger Wheel by integrating it into the Balancer itself! - Saves on average about 9 Ounces over the MSD Crank Trigger Wheel.

Bolt on a matching billet aluminum sensor bracket and mounting hardware with passenger (std) mounting.

3/4-16 UNF Flying Magnet Crank Trigger Sensor - Direct Replacement for MSD # 8276. Designed to work with Integrated IW Flying Magnet Balancer Option.

Small Block    340 Chrysler 7″ Harmonic Damper #301

Double 3/16" Keyway Add On

Add for $20.00