SpeedFactory Racing Valve Springs SF-02-421

Name: SpeedFactory Racing Valve Springs
Brand: SpeedFactory
SKU: SFH-SF-02-421
Price: 169.56 USD
Availability: InStock
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Part Number: SFH-SF-02-421

$169.56

SpeedFactory Racing Valve Springs

Valve Springs, Single Spring, 0.547 in. Max Lift, for use on Acura®, for use on Honda®, Set of 16
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SpeedFactory Racing Valve Springs SF-02-421

SFH-SF-02-421

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Part Number: SFH-SF-02-421

Estimated Ship Date from Texas: Tomorrow

$169.56

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Overview

Applications

Q&A

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Overview

Brand:

SpeedFactory

Manufacturer's Part Number:

SF-02-421

Part Type:

Valve Springs

Product Line:

SpeedFactory Racing Valve Springs

Summit Racing Part Number:

SFH-SF-02-421

UPC:

634562806482

Valve Spring Style:

Standard

Number of Springs Per Valve:

Single

Maximum Valve Lift (in.):

0.547 in.

Retainers Included:

Coil Bind Height (in.):

1.362 in.

Damper Spring Included:

Locks Included:

Valve Stem Seals Included:

Valve Springs Coated:

Yes

Remanufactured:

Quantity:

Sold as a set of 16.

Engine Family:

HONDA L4 GAS

Make:

HONDA

Seat Pressure at Installed Height (lbs.):

60 lbs.

Open Height (in.)(application):

1.456

Open Pressure (lbs.):

166 lbs.

Engine Size:

1.6L/1590cc

SpeedFactory Racing Valve Springs

Engineered for serious performance applications, SpeedFactory Racing valve springs are precision-crafted to deliver the control, durability, and high-RPM stability demanded by modern turbocharged and naturally aspirated builds. Designed with premium materials and optimized spring rates, these springs maintain precise valve motion under extreme boost and elevated engine speeds, reducing the risk of valve float while maximizing power potential. Whether paired with aggressive cam profiles or built for endurance under track conditions, SpeedFactory's valve spring lineup offers a range of solutions tailored to street, strip, and full race engines—ensuring consistent performance and long service life to give enthusiasts and professional builders the confidence to push their setups to the limit. Select the valve springs for your application needs.

Applications