Racers depend on the strength and reliability of H-Beam rods for high RPM, higher horsepower applications. Forged 4340 chrome-moly alloy steel gives these rods a compact grain structure that makes them extremely strong. They're heat treated, fully machined, stress relieved, magnafluxed, and shot peened. Each rod is profiled for stroker engine clearances and weight savings. Premium features include 190,000 PSI rod bolts and bronze alloy pin bushings. Recommended for engines up to 850 horsepower.