SKU: 95569744176

Supertech Valve Spring & Retainer Kit - Mitsubishi 4G63 EVO

$270.85 $300.94
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Description

Supertech Valve Spring & Retainer Kit - Mitsubishi 4G63 EVOSupertech now offers a performance dual & single valve spring and retainer kits for the Mitsubishi 4G63 EVO engine. Supertech Single Dual Valve Springs: Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under

Supertech now offers a performance dual & single valve spring and retainer kits for the Mitsubishi 4G63 EVO engine.

Supertech Single/Dual Valve Springs:
Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.

Supertech Titanium Retainers
Supertech titanium retainers prevent valve float and strength up your valvetrain. Retainers are CNC machined from 6AL4V grade titanium.

Supertech Spring Seat Locater
Supertech spring seats are made from high grade steel and aide in the upgrading to dual valve springs. Thickness of spring seats may vary.

Supertech Viton Valve Seals
Supertech Viton valve stem seals are reduced outer diameter valve seals, perfect for those that are using dual valve springs that may otherwise have valve spring clearance issues. Also a performance option for those that just need to install new valve stem seals due to worn existing seals. 

Valve spring & retainer kit specs and contents:

32pc dual valve springs / 16pc titanium retainers / 16pc steel spring seats / 8pc exhaust valve seals

  • Dual spring seat pressure: approx. 96lbs @ 39.6mm 
  • Spring coil bind: 24.7mm
  • Max net lift: 14.90mm
  • Kit: SPRK-M1007D
Vehicle / engine application: Mitsubishi 4G63 EVO
      Shipping Notes
      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
      1. Standard Shipping : 3-10 business days
      • If time is of the essence, please consider selecting expedited delivery for faster service.
      Exchange/Return Notes
      • We offer a 30-day return/exchange service after receiving.
      • Final sale items are not eligible for returns or exchanges.
      • To process your return/exchange, please contact us at [email protected]
      • Please click here for more details>>> Return & Exchange Policy
      SKU: 95569744176

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      4.4 ★★★★★
      Based on 972 reviews
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      Lu M.
      Waukegan, US
      ★★★★★ 5
      Clean, comfortable staple for casual business wear
      Color: Black, Size: Medium
      Every wardrobe needs a sharp black button-down, and this JEMLDL Oxford shirt hits the nail on the head for versatile styling. The fabric has a nice, substantial weight to it—it's classic oxford cotton that feels durable but remains soft against the skin. The fit is tailored nicely without being a restrictive slim-fit, and the integrated back pleat gives your shoulders plenty of room to move without the shirt pulling untucked. It features a traditional chest pocket and a crisp button-down collar that holds its shape under a blazer or worn casually open over a white tee. It washes up great and doesn't shrink up into a mini-shirt after a cycle in the dryer. Pros: Heavy-duty, high-quality oxford cotton weave. Back pleat offers excellent shoulder mobility for active movement. Versatile styling that dresses up or down effortlessly. Cons: Like all quality cotton oxfords, it requires a quick iron or steam to look crisp. Fits true to size, but has zero elastane stretch in the fabric.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on June 3, 2026
      K
      Verified Purchase
      Kindle Customer
      Natrona Heights, US
      ★★★★★ 4
      Decent quality for the price
      Color: Sky Blue, Size: XX-Large
      Fit well
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 20, 2026
      K
      Kay
      Battle Creek, US
      ★★★★★ 5
      Nice Quality, Great Fit, and Very Comfortable!
      Color: White, Size: XX-Large, Color: White, Size: XX-Large
      I ordered this shirt for my husband, and he is very pleased with it. He says it is a really nice shirt that fits true to size and looks sharp. The fabric has a great, quality weight to it that gives it a structured appearance, making it versatile enough to easily transition from a casual day out to a more business casual setting at work. The biggest selling point for him is how comfortable it is. He mentioned that it feels great against the skin and offers excellent mobility throughout the day, thanks in large part to the classic back pleat design. The chest pocket is a nice, practical addition, and the classic Oxford style looks great right out of the dryer. It is a well made, reliable closet staple that he is already getting a lot of use out of, and we highly recommend it!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 24, 2026
      E
      erika1979
      Chelsea, US
      ★★★★★ 5
      An excellent button down that fits well, looks great, and feels as good as it looks.
      Color: Navy Blue, Size: X-Large
      From the office to dinner and the to church on Sunday, this is a perfect shirt for any situation. It even looks great worn open over a t-shirt with a pair of jeans and boots or tennis shoes. Who said a nice button down needs slacks and dress shoes? It is a cotton?polyester blend so it is lighter weight than a standard cotton oxford. It also isn't as crisp or harsh and it doesn't wrinkle nearly as bad either. The sleeves are a standard long sleeve but they cuff well. The shirt looks great when cuffed too so that helps when it's hot and humid. There isn't really any stretch to this shirt but that isn't a problem becuase it is perfectly true to size. Just follow the size chart and fit is near guaranteed. For only 20 bucks, basically, (22 to be exact), this is a great choice for any situation when a nicer than completely casual look is desired.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 26, 2026
      I
      IvyLeagues
      New York, US
      ★★★★★ 5
      Husband approved
      Color: Khaki, Size: X-Large
      I got this one for my husband too, and it is a really nice shirt. It has that classic Oxford look that works for a lot of situations, whether he is wearing it for work, dinner, church, or just trying to look a little more put together. The fabric feels comfortable but still has enough structure that it does not look sloppy. It is not stiff or scratchy, and the fit looks good on him without being too tight. I also like that it holds its shape well and does not seem like it will need a ton of fussing to look decent after washing. The style is simple in the best way. It pairs easily with jeans, chinos, or dress pants, so it is one of those shirts that can go a bunch of different directions depending on what he wears it with. Another solid husband shirt. Comfortable, clean-looking, easy to style, and definitely something he will actually wear.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 8, 2026

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