Anyone done 2 to 4 bolt main conversion on 351w?

[str8stang036]

Im looking for new main caps, and the milodon 2 to 4 bolt conversion caught my eye. 4 bolts is stronger than 2 so I wanted to ask what you guys thought about it, and if anyone has done it.

 

[Rick 91GT]

What year is the block, if it isn't a 69-74 I would not do it the mains are smaller and weaker on the later model blocks.

If you go with new caps it will need to be alignhoned with them on place, I'd use main studs as well.

 

[str8stang036]

Where can I find new main caps 2 bolt?