GSC Beehive Springs + Titanium Retainer - Mitsubishi 4G63

GSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Our beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is our spring has the highest level of spring load retention while still maintaining good fatigue threw out the life of the spring. Only the best materials go into the GSC Power-Division Beehive valve spring. Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness.The beehive valve spring shape has become the buzz lately. Some have inquired as to the benefits of a beehive spring vs the dual springs that are sold by others. While some might find that the beehive spring design is new it has been used commonly in many OE engines as well as in all of the NASCAR and F1 engines of today. Why? The beehive shape is more stable than standard single or dual cylindrical springs. The beehive design which incorporates an ovate wire is more than capable of the performance demands that were previously only matched by a Dual Springs. With the smaller and lighter retainer used on the beehive valve spring allow for higher RPM and more valve control. So beehive valve springs, with there lighter weight retainers allow for engine's to rev quicker and maintain a more stable valve motion than the traditional cylindrical springs of yesteryear.Beehive Spring Benefits:•Rev faster•Lighter components•More durable design•Less stress on valvetrain components•Lower spring frequency for more precise valve control.•More valve control equals more aggressive cam profiles•Nano Peened for faster break in and less stressed springs•All of these items help to return more power for you to enjoy!The GSC 5040 Includes aBeehive valve spring set, and Grade 5 Titanium retainers You will use the OEM spring seat. This kit is capable of 9500+ RPMS, with as much as 12.1mm lift cams (net valve lift max due to seal to bottom retainer contact). These are a must have for anyone pushing the limits. If you have had problems with valve float or throwing rocker arms this is the spring set that will cure your problems for good..5040 Beehive spring pressure: EVO 4-9 head (Intake listed/ Exhaust -.025")•1.59"=85 lbs •.300" =180lbs •.400"=215lbs •.450"= 230lbs•Coil bind=0.610" DSM / EVO 1-3 head (Intake listed / Exhaust -.030") •1.600"=82 lbs •.300" =179lbs •.400"=212lbs •.450"= 228lbs•Coil bind=0.600"5040 Beehive Rev and Boost range (using an S2 profile camshaft set)•Max RPM: 9,500•Max boost: 32psi

Experience enhanced engine performance with the GSC P-D Mitsubishi Evolution 1-9 4G63 Beehive Valve Springs & Ti Retainer Kit. Designed for enthusiasts and professionals alike, this kit offers a perfect blend of durability and precision. The beehive valve springs provide excellent stability and reduce valve float at high RPMs, ensuring your engine runs smoothly during intense driving sessions.Crafted with high-quality materials, these valve springs and titanium retainers are optimized for the Mitsubishi Evolution series from Evolution 1 through 9. GSC Power Division has engineered this kit to maintain optimal valve control while minimizing the overall weight, giving your engine a quicker throttle response and better efficiency.The titanium retainers are lightweight yet strong, reducing valvetrain inertia for improved engine dynamics. Whether you're building a street performance machine or a race-ready setup, this kit will help you extract maximum performance from your 4G63 engine. The GSC valve spring kit brings reliability and precision to your engine rebuild or upgrade project.