OD trans behind a 273

Thanks Fishy68, I have read that artical and some others. I guess the 273 / od combo is not a good idea. May not mater at this point, today I found an issue with the 273. Water leaking at the intake / head between 3 and 5 cylinder area. I've been wanting a 360 anyway. this maybe the time. My wife thinks this thing is a BOAT. (Bring Out Another Thousand)

Tom