These I-Beam Rods use the same design as original, but are forged from 4140 Chromoly to give you a high strength rod at a budget price. 3/8 inch 8740 200,000 psi tensile load rod bolts add all the strength and reliability necessary for this rod design. Radiused caps aid in stroker clearance. All rods are sold in matched weights. Torque bolts to 38ft. lbs.