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Engine break in oil

3K views 11 replies 10 participants last post by  Gideon 
#1 ·
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
Great Site
 
#3 ·
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.
 
#9 ·
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
 
#12 ·
75gmck25 said:
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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