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Description
PAC 1209X .750" Dual Valve Spring Kit | Titanium RetainersLSX Performance Parts proudly supply the very best in performance valve springs for your build. Our LSX Performance Parts spring kit features the very best & most trusted brand in valve train components PAC Racing 1209X valve springs. The PAC 1209X features the latest technology in valve springs which ensures maximum spring life with its superior design & material integration. The PAC 1209X dual valve springs are part of their line of RPM series which
LSX Performance Parts proudly supply the very best in performance valve springs for your build. Our LSX Performance Parts spring kit features the very best & most trusted brand in valve train components - PAC Racing 1209X valve springs.The PAC 1209X features the latest technology in valve springs which ensures maximum spring life with its superior design & material integration. The PAC 1209X dual valve springs are part of their line of RPM series which have a max lift of a huge .750" lift.
This proves to be the perfect choice for anyone running an aggressive lift with your hydraulic roller camshaft as well as running factory GM rocker arms with a low-lash solid roller camshaft.
This spring kit is the perfect choice for customers spinning 7,000+ RPM, endurance racing, Running 20+ psi of boost in their boosted build & much more!
We recommend a set of aftermarket performance lifters to suit this package as the standard lifters are not recommended.
Your New PAC 1209X Dual Valve Springs Kit Includes
- PAC 1209X .750" Lift Dual Valve Springs;
- Titanium Retainers;
- Spring Seats;
- Valve seals;
Your New PAC 1209X Dual Valve Spring Specs
Install Height 1.800"
Closed Spring Pressure 160lb @ 1.800" Installed Height
Open Spring Pressure 510 lb @ 1.100" Height (.700" Lift)
Maximum Spring Lift .750"
Coil Bind 1.000"
Want More Information On Our PAC 1209X Spring Kits?
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025