Some engine builders may cut corners when it comes to the valvetrain in your engine. This may lead to some serious problems down the road as RPMs increase so does the risk of valvetrain failure. Summit Racing is now proud to offer Manley NexTek Valve Springs to increase the performance of your engine’s valvetrain while providing superior reliability.

Official Release:

As engine RPM increases, so does the risk of valvetrain failure. To ensure consistent, reliable valve operation as the tachometer climbs, Manley makes NexTek Dual Valve Springs.

Made from high-tensile chrome silicone steel, NexTek valve springs have an incredible resistance to fatigue. An extended tip thickness eliminates overload breakage and a flat open end reduces valve stem side loading. Using a proprietary, multi-step heating process, Manley is able to create springs that minimize valve bounce and valve gear separation. Most importantly, NexTek valve springs have a smaller diameter and lighter weight than similar springs, allowing the engine to rev faster and higher.

Manley NexTek dual valve springs come in a wide range of heights, outside/inside diameters, and spring rates. Choose from a single, dual, or triple springs-per-valve application. The springs are available individually or in sets of 16.

When rebuilding the supercharged Ford 640 cubic inch engine plucked from Bob Chandler’s original BIGFOOT monster truck, the crew at Engine Power made certain to use Manley components. The engine’s hemi-style cylinder heads benefitted from Manley seals, locks, wear caps, retainers, valves, and NexTek Valve Springs. Watch the full episode here.

Features:

• High-tensile chrome silicone steel leads to an incredible resistance to fatigue
• Extended tip thickness eliminates overload breakage
• Flat open end reduces valve stem side loading
• A proprietary multi-step heating process which creates springs that minimize valve bounce and valve gear separation
• Smaller diameter and lighter weight than similar springs that allows the engine to rev faster and higher