Kit comes with all 4 Molnar connecting rods and their ARP bolts, 4 Wiseco pistons, rings, pins, and clips.
For Yamaha Waverunner 1800 FX SHO FZR FZ 08-21
Bore: 86.5mm
Compression ratio: 10.5:1
Pistons are .200 shorter in length, and rods are +.200 longer. This combo provides higher RPM and HP (check this link by "Driving 4 Answers" on YouTube for a detailed explanation on how that works. https://youtu.be/C_YNn3ZkJmU?si=OaZAb_qPbBLow9Vv)
These pistons and connecting rods are only compatible with each other, as they are made specifically to work together.
The Molnar connecting rods are made from reinforced chromoly. Molnar H-Beam Connecting Rods are made from a very strong 4340 billet material, heat treated to increase tensile strength and are shot peened to increase fatigue life. All rods have a wear resistant bronze bushing for long wrist pin life and feature ARP2000 fasteners. All Molnar Technologies connecting rods are finished here in the US at their factory near Grand Rapids Michigan. Sizes are held +/- .0001" which is the tightest tolerances you will find in the racing industry. 100% mag particle inspected, bushed for a full floating wrist pin, housing bore is finished to +/- .000050".
