GSC Beehive Valve Spring Kit w/ Titanium Retainers – Mitsubishi 4B11T (GSC5042)
Precision Valvetrain Upgrade for 4B11T Engines
The GSC Power Division beehive valve spring kit with titanium retainers (PN GSC5042) is built for Mitsubishi 4B11T platforms pushing high RPM and boost. This complete set includes 16 beehive springs and 16 lightweight titanium retainers, offering improved valve control and reduced mass for aggressive cam profiles.
Spring Pressure & Lift Specs
- Intake Seat Pressure: 75 lbs @ 1.350"
- Exhaust Seat Pressure: 72 lbs @ 1.361"
- Intake Open Pressure: 217 lbs @ 0.917"
- Exhaust Open Pressure: 214 lbs @ 0.928"
- Maximum Valve Lift: 0.480"
- Coil Bind: 0.800"
Performance Limits
- Max RPM: 9,500
- Max Boost: 40 psi
- Cam Compatibility: Supports up to 12.2mm lift
Product Details
- Part Number: GSC5042
- Fitment: Mitsubishi 4B11T engines
- Includes: 16 beehive valve springs + 16 titanium retainers
Why Choose GSC Beehive Springs?
GSC’s beehive spring design uses advanced heat-treated ovate wire for superior load retention and long-term fatigue resistance. The compact titanium retainer reduces valvetrain mass, enabling higher RPM operation and tighter valve control—ideal for turbocharged builds running elevated boost and aggressive cam profiles.
Fitment:
- 2008 - 2015 Mitsubishi Lancer Evolution X 2.0L Turbo (4B11T)
- 2009 - 2014 Mitsubishi Lancer Ralliart 2.0L Turbo (4B11T)
- 2010 - 2020 Mitsubishi Outlander GT 3.0L V6 (Note: Not applicable unless swapped with 4B11T head)
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