8570 x 1 set. A full set of 6 quality  pistons with rings to provide an  8: 1 Compression for Jaguar  3442cc (3½ Ltr) blocks .These are to original spec.  factory Standard size. These brands  are in common use within our trade, and we have been supplying them  for over 10 years. These are used in many standard engine rebuilds and even in even in some racing engines.

Please call for current availabilty on all pistons and rings sets BEFORE reboring your block to a specific size, so you can be sure they are available for your build  when required.