Engine towers/mounts too far forward?

[Archbronco]

Doing some metal surgery on a 67’ frame replacing the I6 with V8 towers. I went off of Tom’s measurement of 5.68” but I’m reviewing Steve’s drawings and it looks like 6.3” is more spot on. The 11” measurement on Tom’s seemed too vague for my consideration but perhaps I should have done that.
My question is: if I’m .5” forward with my towers will I have enough room/variance to get in a fox body mustang 302?

Thanks
Josh

 

[Broncobowsher]

The engine will fit. The fox body accessory drive is doubtful. It usually take a lot of massaging when things are perfect, usually not worth it. But an Explorer accessory drive will fit just fine, even if you are half an inch too far forward.