This is a premium kit that is MADE IN THE USA. Every component in this kit is proudly manufactured in the USA, ensuring the highest quality and reliability on the market. Unlike cheaper import kits that risk premature failure, this kit delivers lasting performance while supporting American manufacturing and helping bring jobs back to the USA. We are so confident in the quality of this kit that we have a LIFETIME WARRANTY if installed by a certified machinist. 100% MADE IN THE USA: Every core component in this kit—from the lifters to the head bolts—is proudly manufactured in the United States. Eliminate the risks of "no-name" import parts with this professional-tier, all-American restoration package. 12 GM PERFORMANCE / ACD 12499225 LIFTERS: Includes a full set of 12 GM Performance / ACD lifters. These are the highest-grade non-AFM roller lifters available, engineered for maximum durability and quiet operation in the LV1’s high-pressure valvetrain. USA-MANUFACTURED ELGIN HEAD BOLTS: Includes a complete set of high-tensile Elgin Industries Head Bolts. Produced in the USA, these fasteners meet strict torque-to-yield OEM specifications to ensure a permanent, leak-free cylinder head seal. VERIFIED 4.3L LV1 FITMENT: Precision-tailored for the 4.3L LV1 engine found in 2014-2024 Express and Savana 2500/3500 vans. Using VIN-specific (Code P) components ensures 100% compatibility with your non-AFM oiling system. ENGINEERED FOR LONGEVITY: By utilizing only American-made hardware, this kit eliminates common failure points and material variances found in budget kits, protecting your engine’s internal surfaces for the long haul. THE PROFESSIONAL'S CHOICE: This kit is designed for fleet operators and owners who prioritize certified quality and reliability, restoring the smooth, quiet factory operation of the engine's top end. The Ultimate 100% American-Made Restoration Solution Restore your 2014-2024 Chevy Express or GMC Savana (VIN code "P") with the highest-tier professional repair kit on the market. While other kits rely on unbranded import components, this premium package has been engineered to ensure that every single piece is manufactured in the United States. This kit provides a complete top-end refresh for the Non-AFM LV1 engine, focusing on extreme durability for high-mileage work vehicles and fleet duty. Why Choose This Kit? This kit features the legendary GM Performance 12499225 Lifters, widely recognized as the gold standard for Gen V engines due to their high-RPM stability and superior oiling. We have paired these with USA-Made Elgin Industries Head Bolts and a premium Multi-Layer Steel (MLS) Head Gasket Set. By choosing a kit where every component is Made in the USA, you are ensuring a "fix-it-once" repair that provides the exact clamping force, thermal sealing, and mechanical synchronization your engine needs to last another 100,000+ miles.