400 CID needed

[jimbo36]

Previously I posted the need for a standard rotation 400 CID engine. Turns out I need the starboard counter rotation engine, anyone?

[Barrie]

Can you swap some parts from your old reverse rotator to a standard rotator.
400s are a little difficult to find and I'm betting a reverse one would be near impossible.

I need to rebuild/replace both of my 400s.
My short term plan was to get 2 standard rotation engines swap out the parts needed to reveres one and get boating next year.

I'm not sure exactly what parts need to be swapped out for a reverse, I'm guessing here:
starter
cam
oil pump?
water pumps?
distributer?
alternator?

Regards

[Reel Easy]

You are correct. If you're having trouble finding 400s get ahold of muscle motors in Michigan. They have them in stock. They use the B block (400 & 383) to build strokers. They put a 440 crank in them to make a 451 in a lighter block that takes up a little less space.

[WayWeGo]

I have a leaking rear main seal on my counter rotating 440 that the previous owner says is from having a standard rotation crank installed with knurling for oil control going the wrong way. I have more research to do, but that seems to be a chronic problem with rebuilt 440s. Not sure if you might run into it with a 400, but thought it was worth mentioning...

[Reel Easy]

That is what I've read also. I think it can just be removed.

[jimbo36]

Thanks for your input.

[Big D]

The cranks should be the same, it's the main seal that changes. The knurls in the seal spiral in the opposite direction. A common mistake for rebuilders not used to doing counter rotating marine applications.