Harmonic damper fitment issues la360

I have a SFI Pioneer neutral LA balancer and the length of the hole/snout is 2 9/16" measured with a tape.
I've seen that problem of bottoming out on the timing mark protrusion when a big block balancer was mislabeled for an LA application. The BB snout was shorter. But you say you tried 2 different LA balancers already!!!
That's why I originally thought maybe I got a wrong HD, but both of these are long snouts and both exactly the same, they say external balanced but they dont look like what I'm used to for external balance dampers, but this is my first time using aftermarket, I usually have the oem one and still on hood shape, this is honestly my first time building a performance mopar, done loads of Ford engines but those parts are dime a dozen lol, thank you for that measurement, im at work now and as I get info throughout the day I will go over it all when I get home and see where I stand from there, I believe my issue to be the timing cover at this point, just off what I've been told from the responses here