Guest 1938McLaughlin Posted December 17, 2005 Share Posted December 17, 2005 Anyone know what the normal compression should be on a 1938 248 straight eight?At present mine ranges from a low of 120 to a high of 130 psi. most being about 125. Link to comment Share on other sites More sharing options...
Guest ZondaC12 Posted December 17, 2005 Share Posted December 17, 2005 according to my shop manual the range is 110-120 new, warmed up engine. so youre fine. Link to comment Share on other sites More sharing options...
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