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International Automotive Technicians Network
Re: rebuilt engine break-in (vintage)
Posted to Technical Discussion Forum on 11/17/2016

[...trimmed text...]

Excellent advice, Bill

The hard-chromed rings we used back in the Good Old Days would glaze the cylinders if we didn't put a load on them. I recall my mother's 1972 429 Ford LTD used oil from Day On... Login to read more.