6.123" 5140 Steel I-Beam, 3/8" Arp 8740 Bolts

"SIR" FORGED 5140 STEEL I-BEAM RODS  |  Part# SIR-6123CB

12 in stock

Southaven, MS

Important Torque to 40 ft-lbs - ARP moly lube only!

Highlights:

• 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.