318 crankshaft specs

what year is your engine???????
By the way your 318 takes the same damper as a forged crank 273/318/340.(neutral balance)
If you go to mancini racing, this is how they list there dampers.

I don't think the year matters now because it isn't original to my 68 cuda, which kinda pisses me off but oh-well, I'm over it....

FWIW, the block is a 77 318. Has the stamping 3/11/77...

If it's bad, I'll look for a forged 318 crank and just have it turned 10/10...There's a couple on craigslist for 50 bucks...lol