Here is a look at some notes on the 1300 group. I left out the 1302 section on rods because I am revising it now. For right now this is a good overview on piston choices.
Engine kit notes:
Builders purchasing a 2,850 or 3,000 cc large bore kit from us receive the new forged pistons, the wrist pins, Total Seal piston rings, new cylinders, head gaskets (2,850s get base gaskets also, 3,000 cc engines don’t use them), and professionally rebuilt connecting rods with ARP rod bolts with 12 point nuts. The price of the 3,000 cc kit includes the machine work to the case and heads to accept the larger bores. Builders selecting either of these options will be fulfilling the contents of both the Piston and rod group (1300) and the Cylinder group (1400).