Valve Springs

Upgrade your Cummins valve springs and retainers with our Fleece Performance spring and retainer kit. Our springs are manufactured from “super clean” Hi-Tensile Chrome Silicon steel with a proprietary multi-step heat treating process that...

PacBrake strongly recommends installing heavy duty (60 psi) exhaust valve springs with their exhaust brake on 1988-1998 12 valve Dodge Cummins for optimum braking power. The factory exhaust valve springs are not rated to retain the pressure the PacBrake...

Valve Spring Kit; #60;These BD Diesel engine exhaust brake valve springs are designed to keep your engine exhaust brake functioning properly. They feature durable steel construction and are available for your diesel-powered truck.

Fleece Performance has built a reputation as one of the premier truck builders in the industry and strives to keep pushing the limits even higher. The Fleece Performance Engineering team is equipped with all the tools required to develop and test new...

Higher rpm increased boost/drive pressures, and aggressive camshaft profiles can result in valve float and cause serious damage to diesel valvetrains. Valves can also be blown open by higher boost and exhaust drive pressures creating reversion that...

The Industrial Injection 150LB Performance Valve Springs are recommend for people who are pushing over 45psi boost and/or 3200rpm. These performance valve springs will help prevent valve float, there for allowing your truck to run more efficiently and...

The Industrial Injection 95LB Performance Valve Springs were designed with performance in mind. We recommend these valve springs for engines that are pushing over 45psi boost and/or 3200rpm. These performance valve springs will help prevent valve float,...

The Industrial Injection 95LB Performance Valve Springs were designed with performance in mind. We recommend these valve springs for engines that are pushing over 45psi boost and/or 3200rpm. These performance valve springs will help prevent...

Comp Cams drop in valvesprings with shim kit for proper install height and they have i higher seat pressure to help hold the valve open during higher boost applications. Smith Brothers pushrods are not a bad idea with these springs in a more performance...

Irate Diesels competition valve spring setup is for those looking for upgraded springs to be used in the extreme situations or with aftermarket cams. Includes springs, retainers, locks and new valve seals. This springs offer a 160lb of pressure, 420lb...

145lb seat pressure at 1.650 installed height  Coil bind at 1.090 Works with factory spring shim We recommend using WCPC6664 Push Rods with them

145lb seat pressure at 1.650 installed height  Coil bind at 1.090 Works with factory spring shim We recommend using WCPC6664 Push Rods with them