I used Brad Penn 30W break-in oil per the engine builders reccomendations. After the 20 hour by the book break-in period, I used Delo 15W40 with RedLine zinc additive, Baldwin B2 filters and changed after 50 hours. Steel crank, full groove mains, and yes, the mains are trash too. This engine had not been run above 3500rpms EVER. Every other part in the engine and heads look perfect. I did use a brand new oil cooler as well. Of course, its out of warranty, but the engine shop has agreed to look it over and may help out depending on their findings. They have a great reputation and have been in business for 25 + years. Just like they said, this is not supposed to happen, but humans are involved. Supposed to have been a .002 clearance on all bearings. Pretty much ALL the bearings looked like this one. For sure, going to test the oil pump. The pump strainer was the proper distance from pan bottom, not a high volume pump, and the pickup screen was tack welded in place.[FONT=lucida grande, tahoma, verdana, arial, sans-serif]
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