Finally!

I was even temped to swap one in place of my 273 in my Cuda would of been first 8 to 6 swap.

Nope, my 66 Cuda was born with a 273. I bought it with a blown (up) 360. Installed the 170 slant, myself, along with a pushbutton 904 with the shifter in a console on the floor. It was probably also done before I did mine.