The GSC Power-Division race beehive valve spring kit for Evo and DSM includes 16 super finished beehive springs, 16 lightweight titanium retainers, 16 thick CNC chromoly spring seats. Not for street cars or sub 1000 HP builds! Capable of controlling the valves with 60+ psi of boost at 11,000 RPM with 12.1mm lift cams due to improved harmonics of the beehive spring with optimized spring rates and the smallest titanium retainer GSC offers.
Discontinued:
As of September 2021, GSC has discontinued this product. We have none remaining in stock.
• See more Evo 7/8/9 Valve Springs
• See more Evo 4/5/6 Valve Springs
• See more DSM Valve Springs
Vehicle Fitment:
Mitsubishi 4G63
1992-2006 Evolution I-IX
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1993 Galant VR4
• For 1,000+ HP Builds Only
• IN: 125 lbs @ 1.504″ / EX: 131 lbs @ 1.484″ install height
• IN: 279 lbs @ 1.032″ / EX: 285 lbs @ 1.012″
Includes:
(16) Super-Finished Beehive Valve Springs
(16) Lightweight Titanium Retainers
(16) Thick CNC Chromoly Spring Seats
More Info:
Trying to break records? Trying to win races? This is the valve spring kit that will allow you to take your engine package to the next level.
The Beehive springs are super finished to reduce stress and add durability while also adding a clean, silky smooth surface. In racing, every tenth of a gram matters, so the GSC redesigned Ti Retainer is 10% lighter and smaller, while still adding the strength needed to keep the valvetrain in one piece at 11,000 RPM.
This kit also includes the GSC4041 chromoly CNC replacement valve spring seats that are 0.035″ thicker than the OEM part. Able to use NEW OEM valve spring keepers or GSC1003 keeper kit. No need for special aftermarket locks that have the potential of being the wrong angle.
| Part Number: | GSC5058 |
| Springs: | HP Beehive |
| Retainers: | Titanium |
| Coil Bind: | 0.948″ |
| Install Height: | 1.504 / 1.484″ |
| Seat Pressure: | 125 / 131 lbs |
| Open Pressure, 12.00mm Lift: | 279lbs @ 1.032″ 285lbs @ 1.012″ |
| Maximum Valve Lift: | 0.476″ |
| Max RPM: | 11,000 |
| Max Boost: | 60+ psi |
Fast Shipping with Professional Packaging
We provide a variety of shipping options thanks to our long-standing relationships with UPS, FedEx and DHL. Our warehouse personnel are well trained and will be able to pack your goods in accordance with the exact and precise specifications. Before shipping, all goods are carefully examined and secured. We deliver to thousands of clients each day across multiple countries. The fact that we're dedicated to becoming the largest online retailer in the world is obvious. Warehouses and distribution centers can be found in Europe as well as the USA.
Orders that contain more than one item are assigned processing times according to each item.
We will inspect each and every one of the items ordered before shipping. The majority of orders are shipped within 48-hours. Delivery is expected to take between 3 and seven days.
Returns
We do not manage the stock in our warehouse or factory. The levels of stock can change at any time. Please be aware that it's possible for your order to be out of stock after you have placed the order.
The policy is 30 days. If it's been longer than 30 days since you bought the item We're sorry to say that we can't offer you a full refund or exchange.
The item cannot be used, and it must be in its original condition. It must also still be in the original package.
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