[barabar]

Tom,
Thanks for the reply. This is the first BBF 385 series I've built. And this is the first time I've ever had a leak, to include rope seals. One guy on 460.com I think nailed it after he pulled his engine 6 times. You can't have over .010 to .015 crush on the seal or it will distort when you torque down the rear main cap, causing a problem. I thought that cap sat a little high on the block before I torqued it down, but the crank turned easy so I didn't pay much attention to it. Also after researching the problem I found stroker cranks are more prone to leaking. I will have to Mic both cranks to see if there is a diameter different.
I still have it on the test stand, so it isn't to much of a problem tearing it down.
I can't believe with a problem like this someone hasn't come up with a one piece seal, like on the 6.9 & 7.3 diesels.
He also mention different blocks have different groove diameters, can't confirm that until I start Micing things up.