Speedmaster 1-274-017 H-Beam Connecting Rods 5.933" 4340 Chromoly Ford 4.6L ARP 8740

Speedmaster H-beam connecting rods deliver exceptional strength and durability for high-performance Ford 4.6L engine builds. Engineered from aircraft-quality 4340 chromoly steel, these connecting rods are built to withstand the extreme stresses of supercharged and nitrous applications.

Key Specifications:

• Center-to-center length: 5.933 inches
• Big end bore: 2.087 inches
• Pin bore: .866 inches
• Material: 4340 chromoly steel
• Beam design: H-beam configuration for optimal strength-to-weight ratio
• Fasteners: ARP 8740 connecting rod bolts included

Performance Features:

• Doweled cap design ensures precise cap-to-rod alignment for consistent performance
• Extra clearance profiling accommodates stroker crankshaft applications
• X-ray and ultrasonic testing verifies structural integrity
• Shot peened and stress-relieved surfaces enhance fatigue resistance
• ARP 8740 bolts are precision CNC-machined, heat-treated, and feature rolled threads
• ARP fasteners provide up to ten times more fatigue strength than OEM bolts

These connecting rods are ideal for high-horsepower builds where reliability under extreme combustion pressure is critical. The H-beam design provides superior strength while maintaining reasonable weight, making them an excellent choice for forced induction and nitrous oxide applications.