Engine Stands

[GMCJOE]

Little back story. 69 GMC swb that left factory with a 307. When I bought my truck many years ago it had a 454. So, I’m assuming that the PO put in BB stands. After that, I swapped in a carbureted LT1 and reused the stands that was in it. About 2 years ago, while I had my truck stored with a friend I had him put in a 350 crate engine pulled out of a 90’s Chevrolet pickup. Now that I am running a fan, the engine sits too far forward putting the fan too deep into the shroud. I’m running a 4 core radiator. The current stands are in the two forward holes on the frame. The driver’s side stand was definitely cut for the bb headers. From several threads, it seems that the stands are in the correct position.

I’d like to push the engine and transmission back to gain this needed inches. It seems that if it was sitting on the inline 6 stands, the 2 1/2 inches on the rear bolt holes of the frame would put the fan in the position I am needing.

Current setup: 350 w/ serpentine belt drive, 4 core radiator

My question is... Do the big block stands sit the 350 more forward than it should be?

Needs a little love under the hood. Just getting everything correct (mechanics and wiring) before it goes off to body and paint.