340 Rods, speed pro L2316F “stock” weight is more than stock piston

The heaviest rod and piston combo was 35 grams over stock, when I picked up the engin i didn’t know the history it was already machined, rebuilt jheads, block bored, and stock rods machined but with stock bolts and low compression pistons, I don’t trust old bolts but since the rods were already machined they didn’t charge much to press the new arp in and double check them