TSP Gen 5 LT1/L83/L86 .660" spring kit featuring PAC valve springs and PRC integrated seat/seal is the newest offering in valve spring technology offering the latest processes and material for maximum spring life. PAC Racing is a leader in valve spring technology, so it was only natural to team up with the best in the valve spring industry for our latest offering in a valve spring kit! The dual valve springs used in this kit feature a proprietary spring that was developed specifically for the Gen 5 6.2L LT1 engine that requires a taller installed height than the typical LS engine. These are NOT the same springs used in our LS dual valve spring kits, but they do use the same technology and polishing technique that is exclusive to PAC Racing valve springs! We have developed a .660" dual spring kit with the help of PAC Racing that still offers excellent valvetrain control, even for the more aggressive hydraulic roller camshafts. These valve springs will offer excellent durability and stability and will work well with factory-style lifters. PAC uses a proprietary process called nano-peening that increases the residual stress of the wire, meaning that it compresses the molecules together very tight to help the molecular bond hold better. This greatly reduces the chances of spring fatigue and failure. Our kit also includes the patent-pending Precision Race Components integrated valve seat and seal that makes for a very easy installation without any possibility of mis-installation or tearing of the valve seal!
Kit includes: PRC Integrated Spring Seats & Valve Seals, PAC Racing Gen 5 LT1-Specific Polished Dual Valve Springs, and Titanium Retainers (utilizes GM factory valve stem locks, not included)
Specs:
Install Height: 1.900"
Closed Spring Pressure: 160 lb. @ 1.900" Installed Height
Open Spring Pressure: 406 lb. @ .650" lift, 425 lb. @ .700" lift
Recommended Maximum Spring Lift: .660"
Coil Bind 1.09"
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Returns
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Non-returnable items:
Gift cards
Downloadable software products
Tuning Services
To complete your return, we require an RMA number to be given by phone (318-222-7889).
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Order Cancellations: Special order items are subject to order cancellation fees (2-5%). This includes engines, short blocks, and any items that require machine work.
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 2-3 business days (excludes holidays).
Note: Restocking fees may apply.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at amsracing@gmail.com.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, call us at 318-222-7889 and send your item to: AMS Racing, 1020 Barksdale Blvd., Bossier City LA 71111, United States.
Warranty
We do not offer warranty on parts not manufactured by "AMS Racing". We do carry a 1 year replacement warranty on all "AMS Racing" parts. This warranty is from manufacturer defect only and does not include any labor/part claims associated.
Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
Shipping
To return your product, you should mail your product to: AMS Racing, 1020 Barksdale Blvd., Bossier City LA 71111, United States
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.
Free Shipping on Qualified Orders
Within the Continental US
Excludes Freight Shipments ie. Engines
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