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LS Valve Springs PAC1218 Racing Valve Springs Compatible with GM LS Engine 4.8 5.3 6.0 (.600'' Lift Rated)
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LS Valve Springs PAC1218 Racing Valve Springs Compatible with GM LS Engine 4.8 5.3 6.0 (.600'' Lift Rated)
Product Details
| Manufacturer Warrant | 1-Year |
| 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 |
| Fitment Type | Direct Replacement |
| Items Included | 16X Beehive Valve Spring |
| Type | Valve Spring |
| OEM Part Number | PAC1218 |
| New | A brand-new, unused, unopened, undamaged item in its original packaging |
| Compatible models 1 | 1999-2002 Camaro ; Firebird 2010-2013 Camaro 1999-2013 Corvette 2000-2013 Tahoe, Yukon, Escalade 2001-2013 Chevrolet Avlanche 1999-2013 Silverado; Sierra (4.8L, 5.3L, 6.0L) |
| Compatible models 2 | 2004-2006 Pontiac GTO 2008-2009 Pontiac G8 |
| Compatible models 3 | 2004-2007 Cadillac CTS-V |
| Compatible models 4 | 2003-2009 H2 Hummer |
| Engine | 4.8L, 5.3L, 6.0L, 6.2L Engines |
| Fits | LS1 LS2 LS3 LS6 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM4 LM7 L59 LS4 LH8 LH9 L99 L92 L94 L96 L9H LY5 LY6 |
Vehicle Fitment
⚠️IMPORTANT
Please double-check your vehicle’s year, engine type, and part number before purchasing.
If you're unsure, feel free to contact us for assistance.
Specifications
OEM / Part Number：
Package Includes
Shipping&Returns
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All orders ship directly from our U.S. warehouses for faster delivery.
- Orders are processed within 1–2 business days
- Delivery typically takes 3–5 business days
- Free Shipping on orders over $99 within the Contiguous U.S.
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Note: Alaska, Hawaii, PO Boxes, and APO/FPO addresses are currently not supported.
Secure Protective Packaging
Every order is carefully packed with foam cushioning and protective materials to prevent damage during transit, ensuring your parts arrive safe, secure, and ready to install.learn more
Easy 90-Day Returns
Shop with confidence—every order is protected.
Returns are simple within 60 days of delivery.
✔ Unused items accepted in original condition
✔ Free return shipping for defective or incorrect items
✔ Fast refunds after inspection
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Warranty&Care
Limited Lifetime Warranty
Covered against manufacturing defects for life.
Free replacement or refund if defective after inspection.learn more
Installation & Care
DIY installation is possible for experienced users.
Professional installation is recommended for best performance and safety.
Follow instructions carefully to maintain coverage..learn more
Reviews & Q&A
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