SKU: 22291284099

ISKY GM LS High PerformanceValve Spring Kit with Steel Retainers (ISK13800)

$188.97 $209.97
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

ISKY GM LS High PerformanceValve Spring Kit with Steel Retainers (ISK13800)LS1 SPRING & STEEL RET KIT Includes Valve Springs, Steel Retainers, Machined Bead Locks, Tempered Shims and Spring Locaters. Part Number: ISK13800 When removing the stock LS1"Conical" Valve Springs and replacing with Isky "Damper" springs, it is also mandatory to install Isky retainers, locaters and shims. While Isky707 ST and 57 Ti retainers are compatible with the stock LS1 "stamped" bead locks(suit factory Valves), Isky Bead Locks are more

LS1 SPRING & STEEL RET KIT

Includes Valve Springs, Steel Retainers, Machined Bead Locks, Tempered Shims and Spring Locaters.

Part Number: ISK13800

When removing the stock LS1"Conical" Valve Springs and replacing with Isky "Damper" springs, it is also mandatory to install Isky retainers, locaters and shims. While Isky707-ST and 57-Ti retainers are compatible with the stock LS1 "stamped" bead locks(suit factory Valves), Isky Bead Locks are more desirable as they are machined from chrome moly steel and heat treated for maximum pull-through strength.

These kits come complete with Valve Springs, Steel or Titanium Retainers, machined Bead Locks, tempered shims and spring locaters.

Valve Spring Specs: Seat Pressure:135lbs. @1.775", Open Pressure: 350lbs. @1.175", Coil Bind: 1.100", Max Net Lift: .600"

NOTE: All clearance item sales are final & are not returnable for credit or refund, descriptions are correct as per manufacture

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: 22291284099

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4.7 ★★★★★
Based on 2075 reviews
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C
Verified Purchase
Chelsea H.
Omaha, US
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
K
Verified Purchase
Ken Hill
Dallas, US
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support. It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.) I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night. I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable. I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing. Would highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
M
Verified Purchase
Molly Farrell
Lake Worth, US
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
J
Verified Purchase
J. Germello
Battle Creek, US
★★★★★ 5
Cooling fabric is Just what I needed
Color: 03-black, Size: 20" X 26" (Pack of 4)
I'm a hot sleeper. These cooling pillow cases are fantastic. It has ended soaked pillow cases. I paired these with waterproof pillow cases for extra pillow protection. I now sleep cooler and wake up dry. I also toss and turn less and wake up less frequently hot, sweaty and uncomfortable and I can sleep though the night. I don't need to flip my pillows over because of sweat. Both sides of these pillow cases have arc chill cooling fabric. They're soft, silky, breathable and comfortable to lay my head on. The colors to choose from is a wide selection. These look great on my king size bed. I love this fabric so much that I upgraded all of my pillows and blanket sheets to cooling fabric. I'm sold on these. The zipper is premium, sturdy and durable. My pillows fit perfectly on these cases. The cooling material is top notch high quality to me with great craftsmanship. I liked these ones so much that I bought more and plan to again. My partner seen and felt these and immediately went online to buy some blankets to go with the pillow cases I gifted. I also bought my son these and a few cooling blankets. These work best with a fan or air conditioner. Highly recommended and you won't regret this purchase if you're a hot sleeper to profusely sweating during sleep.
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Reviewed in the United States on May 10, 2026
D
Verified Purchase
Dawn H
Birmingham, US
★★★★★ 5
Cool and comfy!
Color: 01-grey, Size: 20" X 26" (Pack of 2)
Very comfy and cooling. Great for hot sleepers!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026

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