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Old 12-29-2002, 07:40 AM
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Post Engine break in oil

My rebuilt 351W is on the stand and will soon be installed. I understand the need to break in the cam and all. In the past I would just use regular oil and drain after. I have seen some post refer to a special break in oil---does it help and where would you get it?
Thanks for any info
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Old 12-29-2002, 08:09 AM
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You would just use the grade that you plan on running. The days of break-in oil are way past.
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Old 12-29-2002, 08:11 AM
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Pre-lub before starting.
Any good grade 10-30 NO synthetics or additives that you plan on running with.
Break in the cam then change oil & filter.
After the motors broken in Id reccomend Royal Purple,Red Line, or Mobil 1 synthetic.
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Old 11-21-2011, 03:57 PM
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What I use.

Thanks,
I run Quaker State 10w30. I have primed the engine which is not in yet. What length of time and rpm have you heard for break-in?
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Old 11-21-2011, 07:01 PM
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Quote:
Originally Posted by Gideon
Thanks,
I run Quaker State 10w30. I have primed the engine which is not in yet. What length of time and rpm have you heard for break-in?
2500 rpm 30 minutes. Add ZDDP for break in.
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Old 11-21-2011, 07:47 PM
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Quote:
Originally Posted by Richiehd
2500 rpm 30 minutes. Add ZDDP for break in.
you can find the ZDDP additive in the sumit calalog. Rollers realy don't need it but flat tappet lifters and cam break in can make the difference in wiping a cam lobe and not. What did you use when you assembled the mains, rods, cam and lifters?
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Old 11-21-2011, 11:28 PM
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If you run a flat tappet cam, you need oil with ZDDP in it. For break in, and the rest of the engines life.
Valvoline VR-1 racing oil currently has the ZDDP in it.
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Old 11-22-2011, 10:58 PM
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Engine break-in

Quote:
Originally Posted by sqzbox
you can find the ZDDP additive in the sumit calalog. Rollers realy don't need it but flat tappet lifters and cam break in can make the difference in wiping a cam lobe and not. What did you use when you assembled the mains, rods, cam and lifters?
The Quaker State 10w-30.
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Old 11-23-2011, 04:35 AM
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If you have a flat tappet cam you should have gotten break-in lube to put on the lobes and lifters. This is absolutely required. You can also get ZDDP additive to put in standard 10w30 oil during the initial cam break-in.

One oil that has the high ZDDP and is fairly easy to find is Mobil 1 15w50. It has 1200 ppm of ZDDP, which should work very well with a flat tappet cam. Other Mobil 1 oils (e.g., 10w30) do not have the high ZDDP, so you need to get that specific weight. I have found it in stock at Advance Auto Parts, but I'm sure others carry it (Walmart does not, for some reason).

Bruce
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Old 11-23-2011, 02:11 PM
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Old 11-23-2011, 04:09 PM
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Royal Purple makes a great break-in oil.
Used it several of my engines.
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Old 12-03-2011, 09:51 PM
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Quote:
Originally Posted by 75gmck25
If you have a flat tappet cam you should have gotten break-in lube to put on the lobes and lifters. This is absolutely required. You can also get ZDDP additive to put in standard 10w30 oil during the initial cam break-in.

One oil that has the high ZDDP and is fairly easy to find is Mobil 1 15w50. It has 1200 ppm of ZDDP, which should work very well with a flat tappet cam. Other Mobil 1 oils (e.g., 10w30) do not have the high ZDDP, so you need to get that specific weight. I have found it in stock at Advance Auto Parts, but I'm sure others carry it (Walmart does not, for some reason).

Bruce
Lube cam with the RPM Performer Cam.
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