Speedmaster H Beam 6.660" Connecting Rods 4340 Bronze Bush Chevy BBC 454 PCE274.1118

The Speedmaster PCE274.1118 H Beam connecting rods are premium-grade engine components engineered for Chevy BBC 454 big-block applications. Constructed from 4340 material with bronze bushings, these rods feature H-beam geometry (6.660" length, 2.200" width, 0.990" thickness) designed to maximize strength-to-weight ratio and withstand high-performance engine demands.

These connecting rods deliver reliable power transfer between the crankshaft and pistons, making them ideal for street performance, racing, and high-revving engine builds. The 4340 alloy steel construction provides superior fatigue resistance and durability compared to standard connecting rods, while the bronze bushings ensure proper bearing surfaces and reduced friction. Whether you're rebuilding a classic muscle car or upgrading an existing BBC 454 engine, these Speedmaster rods offer the precision fit and engineering quality needed for consistent, trouble-free operation.

Key Features & Benefits

• H Beam Design: 6.660" length with optimized 2.200" width and 0.990" thickness for enhanced strength and reduced weight in high-performance applications.
• 4340 Material: Premium alloy steel construction delivers superior fatigue resistance and durability for demanding engine builds.
• Bronze Bushings: Precision bearing surfaces reduce friction and ensure reliable crankshaft-to-piston power transfer.
• BBC 454 Fitment: Direct compatibility with Chevy big-block 454 engines for seamless installation and performance.
• Engine Rebuild Ready: Ideal for performance builds, restorations, and high-revving applications requiring premium component quality.

Specifications

Ideal Applications

• High-performance street and racing engine builds
• BBC 454 engine rebuilds and restorations
• Performance upgrades for classic muscle cars
• Heavy-duty engine applications requiring premium connecting rod strength