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Manley's Pro Series I-beam connecting rods for SBC applications offer a 6.125 in center-to-center length with a 2.125 in big end bore and 0.9281 in pin bore. Supplied with 7/16" ARP 625+ bolts, these rods are available in forged 4340 or 300M steel alloys and offered in multiple weight options. Approximate horsepower rating is listed at 1500+, and select SKUs carry NHRA legal certification.
Manley Performance ROD-SBC SJ 6.125 300M
