6.123" 5140 Steel I-Beam, 3/8" Arp 8740 Bolts
"SIR" FORGED 5140 STEEL I-BEAM RODS | Part# SIR-6123CB
Out of Stock (call for ETA)
Important Torque to 40 ft-lbs - ARP moly lube only!
- Bolts: 3/8" ARP 8740
- Material: Forged 5140 Steel
- Center to Center Length: 6.123"
- Pin Size: 0.984
- Pin End Width: 1.06
- Rod Journal: 2.125
- Housing Bore: 2.25
- Big End Width: 0.93
- Silicon-Bronze pin bushing for full-floating piston pins.
- Typical Weight: 605g
Forged 5140 steel I-Beam connecting rods are an upgrade from O.E. rods and feature a shot-peened surface. Sizing is held to exact tolerances. Sold as a weight-matched set. Recommended for naturally-aspirated, pump gas, road car use.