Technical SBF 6-71 length

Does anyone have a 6-71 on a small Ford with a 3” belt that could tell me what the length is from the back of the block to the front of the lower pulley. I don’t have any of the Ford blower drive stuff yet. I suspect my Model A will have to get a little longer in the engine compartment. I’ll do that while the engine is at the machine shop. A Snow White water pump would solve any potential issue but I can’t find one. Thanks.

 

You can also run a 2" belt, you know....I have one on my blown 427 chevy....

 

I'd wait.

 

yup, best to have EVERYTHING in place while mocking up