Nippon Racing RL5 Pistons are heat treated. Pistons are equipped with 4 CRYOGENICALLY Heat Treated 22MM Wrist Pins and Teflon Coated Skirts and 8 Spiro Locks. All Nippon Racing piston sets are weight matched to +/- 1 gram. These are true High Performance racing pistons with a horsepower rating of 500 HP.
Nippon Racing Pistons are made using 2618 Alloy and Proprietary Centrifugal Spin Casting process as well as a 6 step heat treatment process to insure a piston that is just as hard as a forged piston, but with a much lower expansion rate that forged pistons. Meaning that engines assembled with Nippon Racing Pistons will outperform OEM pistons by 300% and ensure a prolonged end life. This process insures ZERO Internal defects from the factory and are guaranteed to outperform any other piston manufacturers cast piston currently on the market. Nippon Racing offers a guarantee against manufacturer defects on all pistons. Nippon Racing LTD has been manufacturing aluminum components in Japan for over 40 years. All Nippon Racing LTD Pistons and Products are made in Japan.
*Note 87.5mm currently available for Pre-Order, Ship February 2025*
Skunk2 Alpha Series Rods feature an H-Beam design that is precision CNC machined from high-strength aircraft-grade 4340 alloy steel forgings that are then heat treated, tempered, and shot peen stress relieved. Skunk2 Alpha rods come with bronze wrist pin bushings and feature forced pin oiling. Each rod incorporates ARP2000 fasteners rated at over 220,000psi and can handle between 175hp to 200hp per cylinder on average.
Skunk2 306-05-1150 K24 Rod Features:
Forged 4340 Alloy Steel
Bronze Wrist Pin Bushings
Forced Pin Oiling
Shot Peen Stress Relieved
Balanced to within +/- 1 gram
3/8-Inch ARP2000 Rod Bolts Included
