Small block in a slant 6 abody 67-72 cheap and easy using truck mounts

I bought a /6, 70 Duster parts car many moons ago, that had a big block stuffed in it the same way. The thing had a 400/727 combo in it that fit great. I know the passenger side mount was a truck mount, but they used a piece of one inch diameter steel pipe in place of the isolator! The drivers side mount was a factory mount and isolator of some sort.