1. Car/Truck Engine Valves Deals
  2. sku: 10109212374202793
  3. FERREA KT4012

FERREA KT4012 Dsm Bolt Dual Valve Springs Retainers Kit 4G63 6/7 80LBS

fits model: Turbo, Eclipse.

Kt4012 Ferrea Eclipse Dsm Turbo 4g63 6 7 Bolt 80lbs Dual Valve Springs Ti Retainers Kit

( Brand: Ferrea ), ( Manufacturer Part Number: KT4012 ), ( Part Type: Valve Spring Bolt ), ( Engine Codes: 4g63t ), ( Vehicle Make: Mitsubishi )

Review FERREA Dsm 4g63 6/7 Bolt 80lbs Dual Valve Springs Ti Retainers Kit fits ECLIPSE TURBO

The Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit is a high-performance upgrade for your Mitsubishi Eclipse or Galant VR4, specifically designed for use with turbocharged 4G63 engines. This kit includes a set of 80 lbs dual valve springs and their respective retainers, which are engineered to provide superior valve control and reliability.

The dual valve springs in this kit offer an increased spring rate, which reduces valve float during high RPM operation and enhances engine response. The retainers, on the other hand, are made from a robust material that ensures a secure hold on the springs, eliminating the risk of valve train failure due to spring ejection.

These Ferrea springs and retainers are manufactured to OEM specifications and are CNC machined for precision. They are designed to bolt directly onto your existing valves, making installation straightforward and hassle-free. The kit also includes new seals to ensure a proper seal between the valve stem and the cylinder head.

By upgrading to the Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit, you can expect improved engine performance and reliability. The enhanced valve control provided by these springs and retainers allows for more consistent fuel delivery, better combustion, and increased power output. Additionally, the reliability of the retained springs ensures that your engine can withstand the rigors of high RPM operation and boosted power.

This Ferrea kit is a must-have for any Eclipse or Galant VR4 owner looking to maximize their engine's potential while ensuring its longevity. With its high-quality components, precise manufacturing, and straightforward installation, this upgrade is an excellent investment for any performance enthusiast.

Pros and Cons of Buying Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit

The Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit is a popular upgrade for the Mitsubishi and Eclipse 4G63 turbo engines. Here are some potential advantages and disadvantages of purchasing this kit.

Pros:

1. Improved Performance: The increased spring rate of the Ferrea springs can help improve engine performance by reducing valve float and providing better valve control under high boost conditions.

2. Enhanced Durability: The heavier springs and retainers can help withstand the increased forces generated by the turbocharger, potentially reducing the risk of valve bounce and damage.

3. Smoother Idle: Some users report that the Ferrea springs help improve idle stability and reduce engine vibrations, leading to a smoother driving experience.

Cons:

1. Cost: The Ferrea springs and retainers kit is more expensive than the OEM parts. This may be a significant investment for some users.

2. Installation Complexity: Installing the Ferrea springs and retainers kit requires some mechanical expertise and specialized tools. This may make the upgrade less accessible for some DIY enthusiasts.

3. Potential Engine Noise: Some users have reported an increase in engine noise after installing the Ferrea springs. This may be due to the increased valve control and should not be a cause for concern unless it becomes excessive.

Conclusion:

The Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit can offer significant performance benefits for the Mitsubishi and Eclipse 4G63 turbo engines. However, the investment required and installation complexity may make it a less attractive option for some users. Ultimately, the decision to purchase this kit depends on your specific goals, budget, and mechanical capabilities.

Recommendation:

If you are a serious performance enthusiast looking to extract the maximum potential from your 4G63 turbo engine, the Ferrea KT4012 Eclipse DSM Turbo 4G63 Bolt 80lbs Dual Valve Springs Retainers Kit is a worthy investment. However, if you are a casual driver or have limited mechanical expertise, you may want to consider other upgrades or consult a professional mechanic before deciding on this kit.

Details:

We currently offer four different types of retainers to choose from: Titanium, Lightweight Tool Steel, Steel and Aluminum Magnesium retainers, all which are CNC machined perfection superior strength stability. Useful Links. BIND - They can bind and get stuck, losing their ability to open close the valve. So what ends up happening is that when the cam spinning fast high rpm valve never closes, and combustion leaks out of engine, engine loses power.

BREAK - They can break into pieces dropping the valve combustion chamber and consequently ruining your bottom end. Car Make: Mitsubishi, Engine: 4G63T 6-Bolt 7-Bolt DSM / Eco 1-3, Outer Spring Diameter: 22.75mm 29.5mm, Max Net Lift: 13.5mm, Inner 17.1mm 22.75mm, Seat Pressure: 80lbs 34mm, Open 180lbs 24mm, Coil Bind: 20mm, Manufacturer Product Specifications Kit Contains: Dual S10036 Qty 16, Titanium Retainer E11005 Locator SL1009 Valve Locks K10035 Our springs are heat-treated and stress relieved, which dramatically increases the springs life. This is an easily cognisable failure. Ferrea advanced spring design and material specs have uniform load stress distribution even in the most extreme racing conditions.

These valve springs and retainers will reliably allow your engine to rev high without the worry of part failure, valve float, or coil bind. Heat treatment consists of a hard Nitrated surface for unmatched toughness and anti-wear characteristics. Whether you are rebuilding your engine, or building an all out race replacing valve train with Ferrea components will allow to rev higher, and go more aggressive on cams. Each piece is crafted to exact tolerances OD ID specs and insure flat, parallel spring pad the bottom surface.

Aftermarket valve springs are made out of superior metal alloys and optimized spring rates to make sure your valve train can keep up with cams at high RPM. There are 3 Major Issues with stock valve train, that can be prevented by using Ferrea Components. They are not the cheapest on market, but if you want best, Ferrea is way to go.

Fully CNC machining in-house from 4140 chorally alloy for different applications. Ferrea takes great pride in offering premium quality Spring Seat Locators. Ferrea ECLIPSE DSM Turbo 4G63 6/7 Bolt 80lbs DUAL Valve Springs Ti retainers Kit. FLOAT - Valve Float is a hard to diagnose condition where the valve spring rate not high enough fully extend and close after complete rotation of cam before comes back around again.

Ferrea is the top of line when it comes to valves springs and retainers. Great for high revving applications. If you google Ferrea would be hard pressed to find anyone say anything bad about them.

part #: kt4012 prices

  • $1041.41-$1094.68

specifications voomvalve:

  • for models: Turbo, Eclipse
  • brand: Ferrea
  • mpn: Kt4012
  • part type: Valve Spring Bolt
  • engine codes: 4g63t
  • vehicle make: Mitsubishi

general voomvalve:

  • Engines Engine Parts > Valvetrain Components > Valves
  • condition: New

returns voomvalve:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

shipping voomvalve:

  • carrier: UPS
  • cost: $0.00
  • class: Standard, One-day
  • transit: 2-6 Days
  • type: Calculated
  • service: UPS Ground, UPS Next Day Air Saver

seller voomvalve:

  • rating: 99.8%
  • city: Sanford, Florida
  • # reviews: 39147

payments voomvalve:

  • wallet: Apple-pay
  • other
  • credit card: Discover

offer voomvalve:

  • availability: In Stock
  • sold: 0
  • started: October 28, 2025
  • quantity: 1
  • options: Ship-to-home
  • best offers: True
for models: turbo, eclipse, part type: valve spring bolt, engine codes: 4g63t, vehicle make: mitsubishi,
category: auto parts > engines engine parts > valvetrain components > valves, sku: 10109212374202793,

Ferrea KT4012 Is Similar To:

voomvalve logo
2 offers $1041.41–$1094.68 USD
  • Offer #1: $1041.41 price + $0.00 shipping estimate = $1041.41* total. Whether you are rebuilding your engine, or building an all out race engine, replacing your valvetrain with Ferrea components will allow you to rev higher, and go more aggressive on your cams. Great for high revving applications.FREE SHIPPING
  • Offer #2: $1094.68 price + $0.00 shipping estimate = $1094.68* total. (16) Valve Locks (K10035). Ferrea dual valve spring kit for the 1G/2G DSM, GVR4 and Evo 1/2/3 includes a full set of 16 dual springs, titanium retainers, seat locators and valve locks.FREE SHIPPING

Copyright © voomvalve.com