Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#2
02-27-2006, 06:48 AM
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Re: Motor oil info
[ QUOTE ]
On BBC's w/flat tappets, it's *imperitive* to only break them in on the outer springs, or a set of actual break in springs... [/ QUOTE ] I've heard of this before..is it really that "imperative" ?? wilma 
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02 Berger 380hp #95 Lots of L78 Novas Join National Nostalgic Nova! 70 Orange Cooler 69 Camaro 
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#3
02-27-2006, 07:01 AM
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Re: Motor oil info
Good practice...few people do it...you roll the dice on full spring pressure.
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 <span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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#4
02-27-2006, 03:15 PM
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Re: Motor oil info
The guy who is breaking in my new, stock L78 motor said "YOU MUST" use only the outer spring for break in and insists on the 25w-50 Pennzoil race oil because it has a lot of zinc in it, he was up on this a long time ago, told me about the additives being left out of most oils these days except the race oils. He also went on to say that the factory break in GM product EOS, doesn't have the additives it used to. Just one man's opinion, but 30 years experience... SULLY
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70 L78 Nova Fathom Blue,Bench, 4spd, F41, 3:55 71 Porsche 911 Targa
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#5
02-28-2006, 04:50 AM
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Re: Motor oil info
Here in NASCAR country, many top notch engine builders assemble the motors in race or street condition and run them as is. No break-in required. They Highly recommend a true, 100% synthetic oil such as Amsoil, Royal Purple, etc, along with a high quality filter.
Its easy to make horsepower - can you make it last for 500 miles?
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Craig S. "I saw Elvis At 1000 Feet" John Force.
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#7
02-28-2006, 05:52 AM
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Re: Motor oil info
OK so what is the recommendation for oil brand for a standard oil change on a flat tappet motor?.. not a break in, or fresh engine, but for regular usage.
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Joe Barr
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#8
04-02-2006, 10:30 AM
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Re: Motor oil info
The Pennzoil 25-50 GT has NO zinc listed on its data sheet, and claims to be compliant with the current API SJ standards.
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#10
04-03-2006, 04:19 AM
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Re: Motor oil info
This is supposedly a real concern on engine/cam break in...but I use Valvoline Racing all the time which has a good amount in it..GM engine oil supplement also is supposed to have plenty of zinc but don't quote me on it.
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<span style="font-weight: bold"> (__{B}_____]]]]~~~~</span>Don't mess with old farts - age and treachery will always overcome youth and skill! Bullshit and brilliance only come with age and experience.
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