Speedmaster H Beam 4340 Connecting Rods Chevy BBC 454 with ARP 8740 Bolts 6.135"

Speedmaster H beam connecting rods are precision-engineered components designed for Chevy BBC 454 big-block engine builds and rebuilds. Manufactured from 4340 steel with H-beam geometry for strength and lightweight performance, these connecting rods come equipped with ARP 8740 bolts for secure fastening and reliability in high-RPM applications.

These connecting rods feature a 6.135" center-to-center length, 2.200" big-end bore diameter, and 0.990" small-end pin bore, making them a direct fit for BBC 454 engine blocks. The combination of 4340 forged steel construction and premium ARP 8740 hardware delivers the durability needed for performance engines, whether you're building a street rod, competition engine, or rebuilding an existing power plant. Ideal for engine builders and enthusiasts who demand reliable, quality components for long-lasting results.

Key Features & Benefits

• H-Beam Construction: Engineered H-beam geometry maximizes strength while reducing weight for improved engine performance.
• 4340 Forged Steel: High-strength 4340 steel material provides durability and reliability in demanding engine applications.
• ARP 8740 Bolts Included: Premium ARP fasteners ensure secure fastening and withstand high-RPM engine loads.
• Chevy BBC 454 Specific: Precision dimensions (6.135" length, 2.200" big-end bore, 0.990" small-end bore) for direct fitment in BBC 454 engines.
• Complete Ready-to-Install: Comes assembled with all required bolts, ready for installation in engine block.

Specifications

Ideal Applications

• Engine rebuilds and overhauls for Chevy BBC 454 big-block engines
• Performance engine builds for street rods and custom vehicles
• High-RPM competition and race engine assembly
• Original equipment replacement for damaged or worn connecting rods