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The old "knurling the pistons" trick, right, Chief?
It actually works. But try to find someone who knows how to do it!

About rings, the bore wear is probably greatest close to the top. If you use file-fit rings and set them to the correct gap at the top of the cylinder the odds are they'll be really close or butting at the bottom of the stroke.

I know my first reaction was "yuk" but I've run worse than this.

R.



The 2 machine shops in my area knew how to knurl a piston real easy. They only run a few lines of knurls on each side of the piston. Then they will usually be to big to fit in the cyl. Then you can file fit them and the knurls hold oil in them which is good for keeping oil on the cyl walls. Ron

Sure glad someone else mentioned knurling. Last time I did you would have thought that the world was coming to an end from all the perfectionists here. Knurling if done right will last many thousands of miles. ore than likely many more miles than any of use will put on these cars. Knurled valve guides will last many miles too if done right.