Posted by David Lampman on August 27, 2011 at 17:01:30 from (69.54.29.239):
In Reply to: Re: concave pistons posted by old on August 27, 2011 at 16:23:28:
I hear you there Old, I've pulled apart three 123 engines and found Four different pistons. One piston was a flat top with two compression rings, two center rings and a single one piece oil ring. I found flat tops, flat tops with rounded edges on the top, concave tops, 4 ring, five ring 1/4" oil rings and some smaller size oil rings. All that in just three engines! I'm guessing it's from multiple one piston rebuilds in the past. I guess back then you did only what you had to do to Get Her Done. Anyone else got any info on the concave pistons? Why on earth would they have wanted lower compression in these engines anyway? Dave
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