The Spring Kit is a drop-in high performance spring kit For all OE LS cylinder heads and is rated for up to .600" lift. 

This spring kit uses all OE hardware, including seats, retainers, and locks and is 100% drop-in.

The Springs are an ovate beehive spring that has increased loads, rates and frequencies for more aggressive cams. 

This is a full set of 16 springs.

Free 4pcs LS Lifter Guide Tray Bolts.

Specification:

Number of Springs Per Valve: Single

Outside Diameter of Outer Spring (in): 1.290 in.

Coil Bind Height (in): 1.140 in.

Damper Spring Included: No

Install Load: 130lbs

Install Height: 1.800"

Open Height: 1.175"

Open Load: 318 lbs

Spring Rate (lbs/in): 313 lbs./in.

Inside Diameter of Outer Spring (in): 0.885 in.

Valve Spring Style: Beehive

Package Includes:

16X Beehive Valve Spring

4X Trays bolts

Note: If you have any questions about this item, please contact us as soon as possible rather than leaving bad feedback, we like to handle any problem from you, and your understanding is very valuable to us.

 All items are shipped from our United States local warehouse, Free shipping is only applied to the 48 continental united states.

 Customers in Alaska, Hawaii, Puerto Rico, U.S. Territories, APO/FPO, Canada, and other countries may responsible for a delivery surcharge.

 Orders ship out daily from Monday to Friday excluding holidays. All orders placed before 12:00 PM PST will ship that same day. Unless we may have to postpone shipment for 1 business day.

 All orders will have a tracking number sent via email within 1 business day once the order has shipped. If you have not received a tracking number, please check your e-mail filters. If even after that, it is not there, please feel free to contact us via eBay Messaging Tools.

 California shipments will have a sales tax applied.

For all international orders, every country has varying import duties, fees, and custom brokerage fees. Please contact your local shipping carrier and local customs regarding any questions you may have.

Note: If you have any questions about this item, please contact us as soon as possible rather than leaving bad feedback, we are like to handle any problem from you, your understanding is very valuable to us.

We accept payment by eBay, Paypal, Visa, Credit card and so on... 
After you win an auction or use the BUY IT NOW option, an invoice will be emailed to you if needed.
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Note: If you have any questions about this item, please contact us as soon as possible rather than leaving bad feedback, we are like to handle any problem from you, your understanding is very valuable to us.

 We provide warranty service.

 The warranty covers the replacement of the part only and does not cover any associated costs in regards to labor or any other expenses incurred or associated with the purchase of the part. 

 We will issue a replacement part at no cost to the purchaser. If a replacement part is not available, a refund of the original purchase price will be issued. 

 Our liability at any and all times and under all circumstances will never exceed the original purchase cost of the item. The parts that we supply are intended for installation by qualified installers. 

 Warranty will be void due to improper installation or item is used on racing off-road, or an item is used in a different manner.

Note: If you have any questions about this item, please contact us as soon as possible rather than leaving bad feedback, we are like to handle any problem from you, your understanding is very valuable to us.

We care about our valued customers, if you have any questions, our Customer Service will be very glad to help you. 
For more information, please contact us through the eBay message system 
All questions would be answered within 48 hours.

Our working time:
From Monday to Saturday 9:00 am to 6:00 pm.
if you send an email to us, it will be replied to within 1 working day.

If you are not satisfied with the product or service, please contact us before leaving us negative or natural feedback, we will give you a satisfactory solution.