Manley Performance
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Manley Rotating Assemblies 28320UBR Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 3.543 in. Stroke, 5.933 in. Rod Length, Ford, 284, 3-valve, Kit
Manley Rotating Assemblies 28320UBR Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 3.543 in. Stroke, 5.933 in. Rod Length, Ford, 284, 3-valve, Kit
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A$7,084.11
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Description
IMPORTANT NOTICE: Note for Pistons, Rings, Rotors, Rods and engine internalsUnless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.(keyword: pistons)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Manley Performance, Manley StreetFX SKU man28320UBR SFX Item ID 4932927 Accounting SKU man-28320UBR Manufacturer SKU 28320UBR Manufacturer UPC 807298107042 Alternative References 28320UBR, MAN-28320UBR
Rotaing Assembly
Manley Rotating Assemblies are engineered as complete, matched systems to deliver maximum strength, balance, and performance in high-demand engines. Featuring precision-forged crankshafts, high-strength connecting rods, and premium pistons, each component is designed to work together seamlessly for optimal durability and efficiency. Tight tolerances and careful material selection ensure excellent load handling, reduced friction, and consistent performance under extreme RPM and cylinder pressure. By combining Manley’s proven rod, piston, and crank technologies into a unified package, these assemblies provide the reliability and confidence engine builders demand when pushing the limits of power.
Part Type
Engine Crankshaft Rotating Assembly
Features and Benefits
- 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
- 4340 Forged steel H-Beam connecting rods with 3/8 ARP 8740 cap screws or optional ARP 2000 cap screws
- High Performance piston rings & high performance Clevite H Series rod bearings (narrowed)
- Lightweight 4340 forged steel crankshaft
Data: v2 - Desc: v4.2 - Upd: 2026-11-03 04:34:36
Part Type
Engine Crankshaft Rotating Assembly
Features
- 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
- 4340 Forged steel H-Beam connecting rods with 3/8 ARP 8740 cap screws or optional ARP 2000 cap screws
- High Performance piston rings & high performance Clevite H Series rod bearings (narrowed)
- Lightweight 4340 forged steel crankshaft
Specifications
Rotating Assembly, Forged Pistons, H-beam Connecting Rods, Internal Balance, 3.543 in. Stroke, 5.933 in. Rod Length, Ford, 284, 3-valve, Kit
When it comes to building horsepower and torque, you need to start at the bottom and work your way up. Manley rotating assemblies are designed for performance enthusiasts wanting to get the most out of their engines. Their assemblies feature 4340 forged steel crankshaft and H-beam connecting rods, either 7/16 in. ARP 8740 cap screws with a 750 hp rating for LS engines/900 hp for big blocks, or optional ARP 2000 cap screws for up to 1,500 hp. They use 2618 Platinum Series forged aluminum pistons, chromoly premium wrist pins, Total Seal piston rings, and Clevite "H" Series narrowed rods and "P" or "H" Series main engine bearings. Building high-horsepower performance engines takes a lot of thought and all the right parts. Start off right with Manley rotating assemblies.
| Product Attributes | |
|---|---|
| Brand | Manley |
| Manufacturer's Part Number | 28320UBR |
| Part Type | Engine Rotating Kits |
| Product Line | Manley Rotating Assemblies |
| UPC | 807298107042 |
| Actual Engine Displacement | 4.7L/284 |
| Rear Main Seal Style | 1-piece |
| Bore (in.) | 3.572 in. |
| Bore (mm) | 90.729mm |
| Engine Stroke (in.) | 3.543 in. |
| Balanced | No |
| Piston Material | Forged aluminum |
| Piston Style | Dish, with no valve reliefs |
| Harmonic Balancer Included | No |
| Flexplate Included | No |
| Flywheel Included | No |
| Pistons Included | Yes |
| Piston Head Volume (cc) | +6.50cc |
| Wrist Pin Style | Floating |
| Piston Rings Included | Yes |
| Piston Ring Facing Material | Plasmamoly |
| Crankshaft Included | Yes |
| Crankshaft Material | Forged 4340 steel |
| Engine Balance | Internal |
| Connecting Rods Included | Yes |
| Connecting Rod Length Center to Center (in.) | 5.933 in. |
| Connecting Rod Material | Forged 4340 steel |
| Connecting Rod Beam Style | H-beam |
| Rod Bearings Included | Yes |
| Rod Bearing Undersize (in.) | Stock |
| Rod Bearing Undersize (mm) | Stock |
| Main Bearings Included | No |
| Cam Bearings Included | No |
| Gaskets Included | No |
| Oil Pump Included | No |
| Camshaft Included | No |
| Lifters Included | No |
| Timing Chain and Gears Included | No |
| Plastigage Included | No |
| Assembly Lubricant Included | No |
| Quantity | Sold as a kit. |
| Notes | Kit includes 3/8 in. ARP 2000 rod bolts. Fits models with a 3-valve engine. |
Reference Information
| Brand Name/s | Manley Performance |
|---|---|
| StreetFX SKU | man28320UBR |
| SFX Item ID | 4932927 |
| Supplier Item Code | 4932927 |
| Manufacturer SKU | 28320UBR |
| Manufacturer UPC | 807298107042 |
| Alternative References | 3-valve |
Compatibility
No specific fitment data available for this part. For clarification, please contact us.
Detailed Compatibility
| Application Data | |
|---|---|
| Make | FORD |
| Beginning Year | 2005 |
| Ending Year | 2010 |
| Engine Type | V8 |
| Engine Family | Ford modular V8 |
| Engine Size | 4.6L/281 |
| Rod Length (application) | 5.933 in. |
This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.
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