Re: Did a compression test

Posted by Steve Mackinnon On 2009/7/21 18:35:07

Phil, not sure if this helps but as Owen points out there are some variables around normal compression. Another variable could be how well the gauge is calibrated, and if you are 100% confident of no leaks. My simillar '39 282 has the following PSI: 120; 113; 115; 116; 115; 115; 109; 115

This car has some wear, and it may have the cast high comp head on it - the number did not corrospond to numbers I have seen in either the owner's or shop manual, but it seemed close enough to the hi compression head number to make sense, unless it is off another year.

If it runs fairly well, why replace the orginal motor with a replacement block? I would enjoy for now and look to a possible winter project? Hope to see your car sometime here in the Southern NE area!

Steve