08-04-2010, 10:05 AM
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CC Member
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Join Date: Sep 2002
Location: Hickory,
NC
Cobra Make, Engine: ERA 427SC w/427so, ERA GT #2002
Posts: 1,106
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Not Ranked
I didn't read all of the responses, so forgive me for repeating what may have been said.
I've been using Brad Penn in place of Joe Gibbs oil for a couple of years from breaking in engines on the dyno and using it on the street and track in my three flat-tappet cam engines, a stroked 302, built HP289 and a 427 side oiler. For a backup, I've ZDDP additive from ZDDP Plus Central in other premium oils. Here's their web site: http://zddppluscentral.com/home.
It's improtant to note that the most critical time with a flat-tappet engine is during break-in. I know of many engines that have wiped out their cams during this intial running period, or break-in and the first 500 miles. I've heard it said that you can "get by" without the correct amount of ZDDP in the engine oil once fully broken in, but I don't put this off to chance considering the consequences.
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Tom
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough HORSEPOWER." Mark Donohue
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