Thanks to hardworking pioneers like James Merryman, Dave Mennella, and Ray Pampena there is a Fluidampr high performance crankshaft pulley and hormonic & torsional dampener available for the 6G72 DOHC used in the 3000GT and Dodge Stealths.
These are far superior to the OEM crankshaft pulley as they cover a wider range of modified engines due to the viscous elastomer design, they do not have a rubber part which can come apart and throw your timing belt, and they are SFI approved for sanctioned racing.
These are not just a generic part made to fit our engines, these have actually been thoroughly tested on a dyno in controlled conditions. They have been shown to make more power and reduce damaging vibrations and harmonics.
These will help your crankshaft live longer without cracking, put more power to the ground, and lessen bearing wear.
We have attached the testing methodology and results here:
We have personally run this unit for a few years and had zero issues and renewed confidence in our main bearings and crankshaft. We just had our crankshaft magnufluxed and found zero cracks and several seasons over 700HP