Quote Originally Posted by NTFDAY View Post
There is no counterweight on the stock dampner, there is however counterweight on the stock flex plate. If you desire to use a manual tranny behind a stock 400 sbc you must use a flywheel from a 454. Been there, done that.
Correct and that was the reason I listed the brand name Fluidampr, misspelling it btw. I do see I omitted that in the top of the post and that would be confusing.