is it possible to fit a 3.875" stroke crank into a 350 block?

or maybe the better question is will it be safe and not weaken the block much?

the shop told me that they can do it, and it would be ok. but i want some more opinions and actual experiences from more people before i start buying the rotating assembly

 

Should be fine. Have them partially fill the bottom of your water jackets.

 

4" is about the upper limit, but there are so many variables and it depends too on what you want to do or not do to the block, rods, cam to make it work.

 

Yes it is possible.

I doubt they would be so readily available from so many sources if it was not possible.

That stroke in a .030" over 4" block is what people commonly call a 396 small block.

 

i just didnt know if everyone building 396 small blocks were using aftermarket blocks or not

thanks