Any time you increase the lift and duration of a cam, you are putting more stress on the valvesprings and retainers. Factory valvesprings were not made to handle the abuse of higher lift and duration, especially not at the rpm we take our engines to when racing, or even driving enthusiastically.
If you are installing upgraded cams, do yourself a favor and install valvesprings and retainers while you're in there. Your stock valve springs can fail in 3 different ways. They can "bind" and get stuck, losing their ability to open and close the valve. This is an easily diagnosable failure.
Depending on how it binds, it could cause failure to other engine parts. They can "break" into pieces dropping the valve into the combustion chamber and consequently ruining your bottom end.Valve Float is a hard to diagnose condition where the valve spring rate is not high enough to fully extend the spring and close the valve after a complete rotation of the cam before the cam comes back around again. So what ends up happening is that when the cam is spinning fast (high rpm) the valve never closes, and combustion leaks out of the engine, and the engine loses power. Note: Mandatory to check valve guide to retainer clearance prior to operation. H22 / H22A VALVE SPRING & RETAINER KITS Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.
Use steel retainer for high mileage applications. Please message us for a Return Authorization Number before sending anything back to avoid processing delays. Real Street Performance is unlike most "Race Shops". We are a fully functioning wholesale and retail distribution warehouse in addition to a dyno-equipped tuning and engine building facility. Our sales center and order fulfillment center operates with state of the art, industry leading software that allows us to get you ALL of the parts you need for your build quickly and correctly the first time without the headaches or excuses.Sign up to our Newsletter. The item "Brian Crower Dual Valve Springs Steel Retainers Kit Prelude H22 H22A H22A1 H22A4" is in sale since Thursday, July 10, 2014. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Valves & Parts". The seller is "realstreetrsp" and is located in Sanford, Florida.
This item can be shipped worldwide.