5.850 in. Length | 2.125 in. Big-End Bore | 22 mm Pin | Set of 8 | Ford 4.6L Modular Stroker

Build your Ford 4.6L Modular V8 stroker rotating assembly around Manley 15323-8, a 8-piece connecting rod set in the 300M Pro Series I-Beam range. This version combines 5.850 in. center-to-center length, a 2.125 in. big-end housing bore and a 22 mm (0.866 in.) wrist-pin configuration with 7/16 in. ARP 2000 cap screws. The exact dimensions, material and supplied fasteners identify the rod combination you are buying.

Key Features & Specs:

• Center-to-Center Length: 5.850 in.
• Wrist Pin Diameter: 22 mm (0.866 in.)
• Pin End Bore: 0.8671 in.
• Big End Housing Bore: 2.125 in.
• Crank Journal Diameter: 2.000 in.
• Length Configuration: 0.083 in. shorter than stock
• Pin End Width: 0.940 in.
• Rod Material: Forged 300M steel
• Rod Bolts: 7/16 in. ARP 2000 cap screws
• Quantity: Set of 8
• Series: 300M Pro Series I-Beam
• Beam Design: I-Beam
• Subseries: 300M Alloy
• Approximate Rod Weight: 670 g per rod
• Engine Type: Internal combustion
• Engine Application: Ford 4.6L Modular V8 stroker
• Brand: Manley Performance
• Manufacturer Part Number: 15323-8
• Product Type: Engine connecting rod set

Performance Construction:

This Pro Series set uses 300M alloy steel, a distinct material option within Manley’s connecting rod range. Its fully machined I-Beam construction pairs an application-specific profile with the exact ARP fasteners supplied for this MPN. The Pro Series process includes shot peening after machining and individual magnetic-particle inspection, giving the set a construction and inspection package aimed at serious performance engines.

This Ford Modular/Coyote family uses a 22 mm wrist-pin configuration. The stock-length versions measure 5.933 in. center to center, while the stroker versions use the shorter length and special crank journal stated for the individual part. Those details make the exact MPN more useful than a broad Ford V8 label.

The 0.8671 in. pin-end bore and 2.125 in. big-end housing bore describe the two rod ends, while the 5.850 in. center-to-center measurement defines rod length. The crankshaft journal configuration is 2.000 in., paired with the housing bore specified below. Average rod weight is approximately 670 g per rod, giving this exact MPN a useful weight reference alongside its dimensions. The pin end measures 0.940 in. wide.

The supplied 7/16 in. ARP 2000 cap screws are part of this rod’s specification. This ARP 2000 version brings the stated fastener grade together with the 300M steel I-Beam profile, pairing the documented fastener package with the forged rod construction.

Fitment:

• Ford 4.6L Modular V8 stroker

What’s Included:

• 8 Manley 300M Pro Series I-Beam connecting rods, manufacturer part number 15323-8
• 7/16 in. ARP 2000 cap screws supplied with the rods