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

This is a group bundle consisting of:

Image	Qty	SKU	MFR SKU	UPC	Description
	1x	ico97720P	97720P	00840103407395	ICON 04-08 Ford F-150 4WD / 2009+ Ford F-150 2/4WD Rear 2.5 Series Shocks VS PB - Pair
	1x	ico91717	91717	00840103411545	ICON 2021+ Ford F-150 2WD 0-3in 2.5 Series Shocks VS IR 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.

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