Re: Lifters? Help please!

Posted by Tim Cole On 2012/2/1 18:17:18

Hi folks:

The 356 motor hydraulic lifters used to interchange to White truck motors which were Packard Six with hydraulic lifters. We were always able to get those, but supplies were limited.

I found an old paper by KD tools about valve noise and it advised against trying to adjust away noise (no suprise)because that will result in burnt valves. The original Packard motors with solid tappets were very impressive, but wear will cause audible noise. Unless you have access to some really good equipment you will not be able to replicate factory performance in a garage. I used some special machining techniques to minimize this problem and they produced acceptable results although not silent as a good low mileage motor. They had some really good mills and grinders at the factory and those motors were very true.
I really do not think there is a motor builder anywhere who can set up the Packard 8 as good as the factory.

My modern car has solid lifters and there is audible valve noise that wasn't there when it was new. However, I don't fret about it because if I can hear them then I know they are closing.