
Manley 221448-16 NexTek Triple Valve Springs 1.677
Manley designed these NexTek 221448-16 Triple Valve Springs for drag racing in addition to high-performance street applications. They are ideal for Super Stock, Super Gas, Competition Eliminator, Pro Stock, alcohol as well as mountain motor applications.
Manufactured from “super clean” Hi-Tensile Chrome Silicon steel wire, they are also shot-peened to MIL spec for maximum fatigue life. Manley’s proprietary multi-step heat treating minimizes load loss, while the tip thickness is designed to eliminate overload breakage. Computer-aided modeling and design minimizes valve bounce as well as valve gear separation, and tightly controlled open end flatness reduces valve stem side loading.
Optimized “Select Size Fitting” between outer and inner springs also maximize harmonic dampening and reduces heat generated during operation.
Manley NexTek 221448-16 Triple Valve Springs Specs:
- Number of Springs Per Valve: Triple
- Valve Spring Style: Standard
- Maximum Valve Lift: 0.900 in.
- Installed Height and Pressure: 2.100 in. @ 350 lbs./in.
- Open Height and Pressure: 1.200 in. @ 1010 lbs./in.
- Coil Bind Height: 1.142 in.
- Outside Diameter of Outer Spring: 1.677 in.
- Inner Diameter of Outer Spring: 1.195 in.
- Inner Spring ID: 0.635 in.
- Spring Rate: 733 lbs./in.
- Damper Spring Included: No
- Retainers Included: No
- Valve Springs Coated: No
- Valve Stem Seals Included: No
- Locks Included: No
- Quantity: Sold as a set of 16
Note: Advertised pressures achieved after springs pressed solid three times.
Manley NexTek Series Valve Springs –Better By Design!
Original: $628.63
-65%$628.63
$220.02Manley 221448-16 NexTek Triple Valve Springs 1.677
Manley designed these NexTek 221448-16 Triple Valve Springs for drag racing in addition to high-performance street applications. They are ideal for Super Stock, Super Gas, Competition Eliminator, Pro Stock, alcohol as well as mountain motor applications.
Manufactured from “super clean” Hi-Tensile Chrome Silicon steel wire, they are also shot-peened to MIL spec for maximum fatigue life. Manley’s proprietary multi-step heat treating minimizes load loss, while the tip thickness is designed to eliminate overload breakage. Computer-aided modeling and design minimizes valve bounce as well as valve gear separation, and tightly controlled open end flatness reduces valve stem side loading.
Optimized “Select Size Fitting” between outer and inner springs also maximize harmonic dampening and reduces heat generated during operation.
Manley NexTek 221448-16 Triple Valve Springs Specs:
- Number of Springs Per Valve: Triple
- Valve Spring Style: Standard
- Maximum Valve Lift: 0.900 in.
- Installed Height and Pressure: 2.100 in. @ 350 lbs./in.
- Open Height and Pressure: 1.200 in. @ 1010 lbs./in.
- Coil Bind Height: 1.142 in.
- Outside Diameter of Outer Spring: 1.677 in.
- Inner Diameter of Outer Spring: 1.195 in.
- Inner Spring ID: 0.635 in.
- Spring Rate: 733 lbs./in.
- Damper Spring Included: No
- Retainers Included: No
- Valve Springs Coated: No
- Valve Stem Seals Included: No
- Locks Included: No
- Quantity: Sold as a set of 16
Note: Advertised pressures achieved after springs pressed solid three times.
Manley NexTek Series Valve Springs –Better By Design!
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Description
Manley designed these NexTek 221448-16 Triple Valve Springs for drag racing in addition to high-performance street applications. They are ideal for Super Stock, Super Gas, Competition Eliminator, Pro Stock, alcohol as well as mountain motor applications.
Manufactured from “super clean” Hi-Tensile Chrome Silicon steel wire, they are also shot-peened to MIL spec for maximum fatigue life. Manley’s proprietary multi-step heat treating minimizes load loss, while the tip thickness is designed to eliminate overload breakage. Computer-aided modeling and design minimizes valve bounce as well as valve gear separation, and tightly controlled open end flatness reduces valve stem side loading.
Optimized “Select Size Fitting” between outer and inner springs also maximize harmonic dampening and reduces heat generated during operation.
Manley NexTek 221448-16 Triple Valve Springs Specs:
- Number of Springs Per Valve: Triple
- Valve Spring Style: Standard
- Maximum Valve Lift: 0.900 in.
- Installed Height and Pressure: 2.100 in. @ 350 lbs./in.
- Open Height and Pressure: 1.200 in. @ 1010 lbs./in.
- Coil Bind Height: 1.142 in.
- Outside Diameter of Outer Spring: 1.677 in.
- Inner Diameter of Outer Spring: 1.195 in.
- Inner Spring ID: 0.635 in.
- Spring Rate: 733 lbs./in.
- Damper Spring Included: No
- Retainers Included: No
- Valve Springs Coated: No
- Valve Stem Seals Included: No
- Locks Included: No
- Quantity: Sold as a set of 16
Note: Advertised pressures achieved after springs pressed solid three times.
Manley NexTek Series Valve Springs –Better By Design!











