Valve Spring

The Manley Professional Series Valve Springs are engineered for serious performance builders and racers who demand reliable high-RPM control and long-lasting durability. Built from premium chrome-silicon and H-11 tool steels with precision heat treatment and shot-peening, these springs deliver robust tension and fatigue resistance across demanding applications ranging from oval track to the drag strip. Designed to maintain consistent spring pressure and minimize valve float under extreme load, they help keep your engine responsive and controlled when it matters most

Additional Information

Manley Valve Spring, SPRING-1.550 CHR SIL

Part Type

Engine Valve Spring Kit

• Chrome silicon material
• Designed for oval track and drag racing

This is a group bundle consisting of:

Image	Qty	SKU	MFR SKU	UPC	Description
	1x	ico93500	93500	00840103414508	ICON 2015+ Ford F150 / 2017+ Ford F250/F350 IIC Intelligent Control Install Kit
	1x	ico98522DJ	98522DJ	00840103423715	ICON 21-23 Ford F150 Tubular UCA DJ Pro Kit
	1x	ico97720EP	97720EP	00840103423739	ICON 21-23 Ford F150 Rear 2.5 VS PB CDEV Pair
	1x	ico91825E	91825E	00840103423708	ICON 21-23 Ford F150 4WD 3in Lift 2.5 VS RR CDEV Coilover Kit

Bundled group items may ship from multiple locations and could have slightly longer transit times if parts are sourced from different warehouses.

Images in this listing may include individual and/or group shots of the products included in the bundle. Please refer to the table to see a breakdown of what is included. Click on a SKU to see individual item details.

For details on the individual components in this bundle, click here.

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.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

21-23 FORD F150 4WD 2.75-3.5" STAGE 5 SUSPENSION SYSTEM W TUBULAR UCA