"Long Rod" 351-W tech/info needed

[Bonos]

I had a machine shop do my 408 machine work ,which had 351 m rods and they also machined a notch in the bottom of each cylinder skirt for the rod bolt on each to clear due to the long rod.

bonos

[DAVID GAGNARD]

Originally Posted by Bonos

I had a machine shop do my 408 machine work ,which had 351 m rods and they also machined a notch in the bottom of each cylinder skirt for the rod bolt on each to clear due to the long rod.

bonos

The 351-W bock can only handle a 3.5 inch stroke in "standard/factory" form, anything more, one has to notch the bottom of the cylinders for rod clearance, much the same with a factory 302 block.
Your 408 should have a 4 inch stroke, so notching the cylinders is a must, regardless of what type or brand of connecting rod used....

David