I-Beam Connecting RodsSmall Block Chevy 350Length: 5.700Crank Diameter: 2.1Pin Diameter: 0.9275140 Chromoly Steel8/pkg These Procomp Electronics I-Beam connecting rods incorporate all of the best features possible for an I-Beam rod, including some strength adders found in H-beam designs. Procomp Electronics I-Beam connecting rods are profiled with clearance for long stroke applications. These connecting rods feature a one-rib cap design for added strength and bearing support, polished beams to eliminate stress risers. Procomp Electronics cap screw bolts to greatly increase strength and horsepower capabilities. Procomp Electronics I-Beam Street connecting rods are manufactured from high quality 5140 chromoly steel. The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved.