A man in California got frustrated and GAVE me a really well-prepared 327 racing engine once because he could not stop an oil leak. I found that it had come from the factory with a canister-type oil filter and someone had overtightened the center bolt and put a hairline crack in the casting above the threaded hole for the bolt. It was leaking oil into the bellhousing area. A quick rethreading to 1/4" pipe and an Allen plug stopped the leak.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!