Speedmaster PCE274.1089 I-Beam Race Connecting Rods 6.800" 4340 Bronze Bush Chevy BBC 454

The Speedmaster PCE274.1089 is a high-performance I-beam connecting rod designed specifically for Chevy BBC 454 engines. Constructed from 4340 material with a 6.800" length and 2.200" big end bore, these rods feature bronze bushings rated for the .990" pin size, delivering reliability and strength for race and high-performance applications.

These connecting rods are engineered for builders seeking durable, precision-machined components that meet rigorous performance standards. The I-beam design minimizes weight while maintaining exceptional durability, and the 4340 alloy steel provides the strength needed for demanding engine builds. The bronze bushings ensure proper pin retention and longevity, making them suitable for serious performance work on Chevy BBC 454 platforms.

Key Features & Benefits

• 4340 Alloy Steel: Forged from 4340 material for superior strength and durability in high-performance applications.
• I-Beam Design: Engineered I-beam profile balances weight reduction with structural integrity.
• Bronze Bushings: Precision bronze bushings (.990" pin size) provide reliable pin retention and extended service life.
• Chevy BBC 454 Fitment: Dimensioned at 6.800" length with 2.200" big end bore for direct BBC 454 compatibility.
• Race-Grade Construction: Precision machined for tight tolerances and consistent performance in competitive engine builds.

Specifications

Ideal Applications

• High-performance Chevy BBC 454 engine builds and rebuilds
• Race and competition engine applications
• Performance street and strip engines
• Professional engine machine shop builds