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hmmm lets see. for my engine breakin I used the cheapest oil wallmart had (10w30) along with superweak valvesprings. after cam breakin and a hour to change back to the good springs. twas good to go. and for 'regular' running I use the cheapest oil wallmart had (10w30), changed every 2000miles w/ new filter and again with no problems.



now i might not know alot, but your looking to wipe out your cam. unless you have a newer car that cheap walmart oil is not what you want. you need an oil rich with zinc , or you need to use some zinc additive with the walmart oil. just my . i use the brad penn green oil. st 30 for break in, and 10w30 after break-in

71 scamp big block with 915 heads 727 trans