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    Ferrea Beehive Valvesprings & Ti Retainers 4G63 6/7-Bolt
    SKU#: S2015/E12021/SL1091
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      Retail Price: $503.95
      Online Price: $503.95

      Today's Price: $503.95

       
      Description
      This is the perfect spring and retainer option for your Built B-Series Street Car. In addition to superior spring geometry, the entire They are processed with premium grade alloy and feature special thermal treatment to provide top of the line performance in the most abusive conditions. 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:

      • BIND - 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.
      • BREAK - They can "break" into pieces dropping the valve into the combustion chamber and consequently ruining your bottom end.
      • FLOAT - "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.

      All three of these conditions can be avoided by using these Ferrea Valve Springs and Ti Retainers.


      Ferrea Beehive Valve Springs feature a variable rate changing diameter coil geometry that increases spring performance on street driven race engines by:

      •     Optimizes Valvetrain Harmonics
      •     Reducing Valvetrain Resonance
      •     Increase Spring Stability
      •     Increase Spring Stability
      •     Reduce Spring+Retainer Mass..smaller and lighter




      Manufacturer Description

      Ferrea's Beehive Valve Springs Series is available for domestic performance street/strip and racing applications. Developed from premium grade super-clean PAC Alloy materials, these valve springs are progressively coiled with tighter tolerances, heat treated, stress relieved, and multistage shot peened for extended life and durability.

      Ferrea is pleased to offer our Pro-Series Titanium Retainers including sizes that fit both traditional Domestic springs and Sport Compact springs. Precision CNC-machined from aerospace quality titanium, these Pro Retainers are fully heat-treated and finished to exact tolerances, adding strength while offering a 40% weight reduction over conventional steel retainers.

      Features
      Specifications
      Videos
      Specifications
      Included Ring Set Specifications
      Product Weight Specifications
      Outer Diameter Specifications
      Inertial Weight Specifications
      Shell Material Specifications
      Hub Material Specifications
      Compressor Wheel Inducer Specifications
      Exhaust Wheel Exducer Specifications
      Exhaust Housing A/R Specifications
      Exhaust Housing Inlet Specifications
      Exhaust Housing Outlet Specifications
      Compressor Housing Specifications
      Bearing Type Specifications
      Size Specifications
      Inlet Size Specifications
      Included Adapter Specifications
      Years Specifications
      Torque Rating Specifications
      Old Part Number Under SKU
      Thickness Specifications
      Competitor Interchange Part Number Under SKU
      Outer Spring Diameter Specifications
      23.87mm / 28.07mm
      Max Net Lift Specifications
      13.5mm
      Valve Tip Length Specifications
      Inner Spring Diameter Specifications
      14.73mm / 18.85mm
      Seat Pressure Specifications
      90lbs @ 38mm
      Open Pressure Specifications
      225lbs @ 28mm
      Rate Inch Specifications
      342 lbs
      Coil Bind Specifications
      23mm
      Duration @ 1.27mm Specifications
      Lobe Separation Specifications
      Gross Lift Specifications
      13.5mm
      Torque Specs Specifications
      Cam Duration Specifications
      Cam Lift Specifications
      Valve Head Size Specifications
      Valve Head Diameter Specifications
      Compression Ratio Specifications
      Face Type Specifications
      Pin Fit Specifications
      Small End Width Specifications
      Thickness Above Pin Specifications
      Dome CC Specifications
      Recommended Thrust Washer Specifications
      Recommended Main Bearings Specifications
      Flywheel Opening Specifications
      Pilot Bore Diameter Specifications
      Snout Diameter Specifications
      Flywheel Bolt Holes Specifications
      Rear Seal Design Specifications
      Minimum Rod Length Specifications
      Main Journal Diameter Specifications
      Rod Journal Specifications
      Intended Balance Specifications
      HP Rating Specifications
      Recommended Rod Bearings Specifications
      Gasket Thickness Specifications
      Head CC Specifications
      Car Model Specifications
      Eclipse Evo 1-9
      Engine Specifications
      4G63T all years
      Rod Bolt Specifications
      Part Weight Specifications
      Big End Width Specifications
      Big End Bore Specifications
      Beam Type Specifications
      Car Make Specifications
      Mitsubishi
      Pin Size Specifications
      Compression Height Specifications
      Rod Length Specifications
      Stroke Specifications
      Bore Specifications
      Stem Diameter Specifications
      Valve Length Specifications
      Material Specifications
      Titanium
      Bore Size Specifications
      Impedance Specifications
      Nozzle Specifications
      Standard Pin (Included) Specifications
      Upgraded Pin (Not Included) Specifications
      Pin Locks (Included) Specifications
      Ring Part# Specifications

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