Eagle SIR6123CP SIR 5140 Forged I-Beam Connecting Rods Chrysler 318, 340, 360
Why spend time and money reconditioning your stock rods when you can upgrade to a set of Eagle SIR I-Beam connecting rods for less? They're forged from 5140 steel for outstanding strength and reliability and they come in both press-fit and bushed pin models. Their lightweight design places less stress on the rest of your rotating assembly to increase engine life and better handle high-rpm use. The rods are X-rayed, sonic-tested, magnafluxed, and shot-peened to stress-relieve the metal. They come with 12-point ARP Wave-Lok rod bolts (3/8 on small block 7/16 on big block) and are weight-matched to within two grams. The big end sizing is controlled by in-house CNC equipment to ensure precise machining and accurate fitment. Perfect choice for Small Block engines producing up to 500 horsepower and Big Block engines producing up to 700 horsepower.
- Fasteners: 3/8" ARP 8740
- Torque: 40 ftlbs with ARP moly lube on threads
- Pin fit: Press-Fit
- Recommended up to 500 HP
- Length: 6.123 in.
- Rod journal: 2.125 in.
- Housing bore: 2.2500 in.
- Pin size: 0.984 in.
- Big end width: 0.9300 in.
- Pin end width: 1.0600 in.
- Thickness above pin: 0.200 in.
- Typical weight: 605g
Notes: Standard length 318, 340, 360 small block rod.