![BTRROD6125H1-8 Forged 4340 H-Beam Connecting Rod Set for GM Gen III/IV LS Engines 6.125 in. Length [Set of 8]](https://www.jegs.com/images/mini_750/500/559/559-j000006.jpg)
BTRROD6125H1-8 Forged 4340 H-Beam Connecting Rod Set for GM Gen III/IV LS Engines 6.125 in. Length [Set of 8]
- H-Beam Connecting Rod Set
- GM Gen III/IV LS Engines
- 6.125 in. Length
- .927 in. Pin Bore
- 2.100 in. Rod Journal
- 4340 Forged Steel
- ARP 2000 Bolts
- Bronze Bushings
- Shot Peened
- Set of 8
BTR’s 4340 forged H-beam connecting rods are engineered for high strength, dimensional accuracy, and long-term durability in demanding LS engine builds. Each rod is heat-treated, stress relieved, and shot peened to enhance fatigue resistance. The 6.125 in. center-to-center length mates with a 2.100 in. rod journal and a bronze-bushed .9278 in. pin bore, making these rods suitable for a wide range of LS stroker and rebuild applications. Precision machining and serialized cap-and-rod pairing ensure proper alignment and repeatable bearing clearances after service. Every set undergoes inspection for housing bore diameter, pin bore diameter, bend, twist, and center-to-center length. ARP 2000 7/16-20 x 1.600 in. rod bolts are pre-torqued using high-pressure lubricant for consistent clamp load. Rods weigh approximately 665 grams and are matched within 2 grams per set. Each rod is laser marked with the BTR logo, individually VCI bagged, and boxed in matched sets of eight.
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
![Break-In/Engine Oil Supplement [12 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28060.jpg)
![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)



![Engine Stand [1000 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-80040.jpg)

![Drain Pan [7 Quart]](https://www.jegs.com/images/mini_200/500/555/555-w4070.jpg)
