Manley 15321R6-8 Pro Series 300M I-Beam Connecting Rod Set Ford 5.4L ARP 625+

The Manley 15321R6-8 Pro Series connecting rod set represents the ultimate in strength and durability for high-horsepower Ford 5.4L Modular V8 builds. Engineered specifically for forced induction applications, this 8-rod set features heavy-duty beam construction capable of supporting extreme power levels.

Key Features:

• Forged from 300M aircraft-quality vacuum degassed material for superior strength
• 6.657-inch center-to-center length (stock specification)
• 2.239-inch big end bore for stock crankshaft journal
• 0.866-inch bushed full floating piston pin bore
• Equipped with premium 7/16-inch ARP 625+ cap screws
• Fully machined to produce optimal strength-to-weight ratio
• Shot peened after machining to MIL specs and 100% magnafluxed
• Rated for 1200+ HP on oval track and 1500+ HP in drag racing applications

Each connecting rod is manufactured in Manley's Lakewood, New Jersey facility to exacting tolerances. The bores are perfectly round without tapering, and bend and twist are tightly controlled. The 300M alloy construction provides exceptional fatigue resistance under extreme cylinder pressures, making these rods ideal for turbocharged and supercharged applications.