Reply To: 1955 QD-16 Parts

[Don]

What makes you think you need new pistons/rings? Do you have the powerhead apart? These engines are pretty durable and usually don’t get enough use to cause enough wear to warrant rebuilding…Unless, of course, there is obvious damage due to overheat/rust/low oil, etc.
If it actually does need rebuilding, the pistons and rods should be updated to the pieces used in the 1961 model year, which had larger wrist pin bores along with needle bearings….