Four bolt mains

SWED67barracuda said

Hi . Have anyone with any success used these milodon main caps . I think i asked once before what the pro`s thought about them and the general idea was that one should get a race block if that kind of power is to come out of it, or cut off the outer parts of them and use them as two bolt caps and I`m fine with that. But it really did not answer the above question . Have they been used with any success.Best regards UbbeView attachment 1715449443

Click to expand...

I have a 1967 340 block I got from a friend of mine that has them installed. I am not crazy about the angled bolts, and where they go into the block. Not a lot of surface for the bolts, and can only drill and tap a minimum depth. I didn't see it necessary for this application, but they are on now. Unless you are missing some main caps, I don't think I would do it. I think the better option is the Mopar Performance caps that Rocket has for sale . I am reassembling the engine now. It has a set of W-2 heads on that leaked, so it had very little run time and never raced. So the main and rod bearings looked fine. But I can't testify if it will last yet.