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Priced less than their H-beam brethren, Scat Pro Comp I-beam rods aren’t just a fancy stock replacement. They are 4340 forged steel and have ARP 7/16-inch bolts. Good enough that they are used regularly in 8,000-rpm engines across the country. Also forged, but from aluminum, the CP pistons use lateral gas ports to help the rings seal quickly and fully. Though the numbers vary, gas porting can easily add 5-20 hp for less than $100.