Holley Engine to transmission lower structure support vs. stock 4.7 support?

RustyRatRod said
They are far from "exact". If you're lucky enough that your application uses the same bolt holes then, yeah it might work, but the Holley piece has eight bolt holes along the bottom and the factory piece has four. But if the factory piece is that much cheaper as you say, buy it and see.

Well I imagine Holley was trying to sell to a larger group of customers and add the additional 4 lower holes to fit various other transmission.
As for the 45-545RFE transmission that I'm using both parts are a fit. My only worry as mentioned above is the oil pan rail pattern.

-- I was looking and notice that by using the Tran mount holes and a deductive reasoning the pan bolt spacing "looks" to be the same. If you look at the angle pictured below you can see the rear pan bolts look to be the same width apart from the opposite side by using the hole for the mounting to the transmission. What does look like it might be off is the spacing between the forward and aft pan bolts. its hard to tell to me because the stock parts looks to have more (meat) material in this area where the Holley parts seem more streamline (cleanup) in that area and I can't tell if its off or an play on the eyes due to the amount of martial between the two pictures...

Anyway I found a used one on flee-bay for 20 bucks so I'll bite the bullet and test it out...