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The Manley Performance connecting rod identified by manufacturer part number 15318-8 is engineered for a measured performance-engine assembly. Final compatibility depends on the exact engine, mating components, and verified dimensions, not a similar product title alone.
Key Features
- ARP 2000 Rod Bolts: 3/8-inch diameter bolts rated at 220000 psi secure the rod caps for high-horsepower reliability.
- Forged 4340 Steel: High-tensile material heat treated for maximum strength and fatigue resistance under extreme loads.
- Nitrided Surface: Black oxide-like finish minimizes friction wear and galling in high-heat conditions.
- Lightweight Design: 610 grams per rod reduces rotating mass for quicker revs and better throttle response.
- Set includes 8 rods for complete V8 engine assembly.
- Big end bore 2.310in small end 0.927in rod journal 2.123in.
Fitment
| Fitment Status | Engine and build verification required |
|---|---|
| Required Verification | Exact engine code, dimensions, mating components, material, intended power level, and current Manley application listing |
Specifications
| Brand | Manley Performance |
|---|---|
| Manufacturer Part Number | 15318-8 |
| Product Type | Connecting Rod |
| Fitment Type | Fitment Verification Required |
| Condition | New |
| Engine Displacement | 5.0 L |
What's Included
One new Manley Performance connecting rod in the exact quantity and configuration stated in the specifications. Bearings, rings, pins, locks, fasteners, and installation hardware are included only when expressly listed for this part number.
About Manley Performance
Manley Performance engineers connecting rods, pistons, crankshafts, valves, valvetrain components, and related hardware for professional street, racing, and forced-induction engine builds.
Related Manley Performance Products
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Frequently Asked Questions
How do I verify the application for Manley 15318-8?
Match the exact Manley part number and engine code, then confirm every listed dimension, material, mating component, clearance, and intended power level before ordering.
What dimensions must match before ordering these connecting rods?
Confirm center-to-center length, big-end bore and width, wrist-pin diameter, small-end width, beam design, fastener specification, crankshaft journal, piston, and required clearances.
Can connecting rods be installed without balancing the rotating assembly?
A professional engine builder should measure every rod, verify fastener stretch or torque procedure, check bearing clearance and side clearance, and balance the complete rotating assembly.
Installation Instructions
Use the current Manley instructions for part number 15318-8 and the engine builder's measured assembly specifications. Verify material, orientation, machining, clearances, fastener procedure, lubrication, balance, torque or stretch values, and break-in before operation.
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