It may have to do with how the pistons where made and the materials they were
made from. Forged pistons tend to expand much more as they heat up. For this
reason they may appear smaller than cast or hypereutectic pistons. It also
causes them to be very noisey until they are up to optimum temperature.
>===== Original Message From Carl French <cfrench@cybertours.com> =====
>Why are some pistons taller than others of the same type and indication.
>I two sets for my MG and they are very different in height. Two
>different manufacturers (Aerolite & County), two diff. distributors
>(Moss & Northwest Imports).
>
>Carl French
>67B
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