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Manley Pro Series I-beam connecting rods are precision forged from 4340 or 300M vacuum-degassed steel alloys, available in Tour Lite through Heavy weights and NHRA-legal for some SKUs. These 6.125" center-to-center rods feature a 2.125" big end bore, .9281" pin bore, and 7/16" ARP 2000 bolts, with an approximate horsepower rating of 1500+ for suitably built engines.
Manley 6.125 Stroker ARP 625 Bolts 2.0 Crank Journal .927 Pin 300M I-Beam Connecting Rods
