Manley Performance
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Manley Ford 4.6L/5.4L SOHC NexTek Series High Performance Valve Springs (2 valves per cylinder)
Manley Ford 4.6L/5.4L SOHC NexTek Series High Performance Valve Springs (2 valves per cylinder)
A$740.61
Available from MFR.
This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description
From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.
Part Type
Engine Valve Spring Kit
Features
- Manufactured from “super clean” Hi-Tensile Chrome Silicon steel
- Proprietary multi-step heat treating minimizes load loss
- Shot-peened to MIL spec for max fatigue life
- Tightly controlled open-end flatness reduces valve stem side loading
- Tip thickness designed to eliminate overload breakage
Specifications
- Product Attributes - Brand
- Manley
- Product Attributes - Manufacturer's Part Number
- 221437-16
- Product Attributes - Part Type
- Valve Springs
- Product Attributes - Product Line
- Manley NexTek Valve Springs
- Product Attributes - UPC
- 807298023441
- Product Attributes - Valve Spring Style
- Beehive
- Product Attributes - Number of Springs Per Valve
- Single
- Product Attributes - Maximum Valve Lift (in.)
- 0.580 in.
- Product Attributes - Retainers Included
- No
- Product Attributes - Outside Diameter of Outer Spring (in.)
- 1.175 in.
- Product Attributes - Coil Bind Height (in.)
- 1.080 in.
- Product Attributes - Damper Spring Included
- No
- Product Attributes - Spring Rate (lbs./in.)
- 255 lbs./in.
- Product Attributes - Inside Diameter of Outer Spring (in.)
- 0.787 in.
- Product Attributes - Locks Included
- No
- Product Attributes - Valve Stem Seals Included
- No
- Product Attributes - Valve Springs Coated
- No
- Product Attributes - Remanufactured
- No
- Product Attributes - Quantity
- Sold as a set of 16.
Reference Information
| Brand Name/s | Manley Performance |
|---|---|
| StreetFX SKU | man221437-16 |
| SFX Item ID | 4060352 |
| Supplier Item Code | 4060352 |
| Manufacturer SKU | 221437-16 |
| Manufacturer UPC | 807298023441 |
| Alternative References | 4.6L/5.4L |
Compatibility
| Application Data |
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|---|
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