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Manley Pro Series I-Beam connecting rods for Chevy Big Block are forged 4340 Pro Series rods with 6.700 in center-to-center length, 2.325 in big end bore and 0.9911 in pin bore, supplied with 7/16" ARP L19 bolts. Marketed for high-capacity builds, Manley documents approximate horsepower ratings—1000 hp for oval journal and 1600+ hp for drag applications—making these rods a factory-style, performance-oriented choice for serious engine assembly.
Manley Chevy Big Block 6.700in Length 4340 Pro Series I-Beam Connecting Rods w/L-19 Bolts - 8
