4.3L LV1 Ecotec3 Gen 5 Camshaft Install Rebuild Kit | Roller Camshaft | 4 GM 12645725 AFM Lifters | 8 GM Performance 12499225 Lifters | Head Gasket Kit | Head Bolts | FITS: 2015+ Chevy GMC 4.3L V6 LV1

Description

Restore your engine’s power and quiet operation with a high-tier mechanical solution built for the 4.3L EcoTec3. This LV3 AFM Repair Kit addresses notorious “lifter tick” and camshaft lobe wear by replacing failed components with a combination of factory-validated hardware and precision-engineered parts. We have upgraded this kit to include 8 Genuine GM Performance 12499225 Lifters and 4 Genuine GM 12645725 AFM Lifters. These are the gold-standard factory components designed to handle the high cycling of the Active Fuel Management system, ensuring your valvetrain operates with the precision and silence your Chevy or GMC truck had the day it left the showroom.

The foundation of any successful top-end rebuild is the seal, which is why we include 100% USA-Made Elgin Industries Head Bolts and a Multi-Layer Steel (MLS) Head Gasket Set. Unlike standard composite gaskets that can degrade under high heat, our MLS gaskets act like a “spring,” maintaining a rigid, high-pressure seal even as your aluminum heads and block expand and contract. By using American-manufactured fasteners that meet strict torque-to-yield specifications, this kit provides the superior clamping force necessary to prevent future combustion leaks or head gasket failures.

Choosing this kit means investing in a “fix-it-once” solution that balances Genuine GM reliability with high-performance aftermarket engineering. While the included High-Quality AFM Camshaft is a premium aftermarket component, it is manufactured to strict tolerances to ensure a perfect match for the factory profile. Whether you are a fleet owner maintaining work trucks or a DIYer looking to save your daily driver from a total engine swap, this kit eliminates the risks of “white box” import parts. You are getting a synchronized valvetrain refresh backed by the strength of USA-made hardware and factory-validated internal components built for the modern V6 platform.

Manufacturer: GM / REDLINE USA
Model: 4.3L LV1 ECOTEC3 CAMSHAFT INSTALL KIT
Included components: Guaranteed to fit and meet the specifications of the OE parts being replaced
Warranty: LIFETIME IF INSTALLED BY A CERTIFIED MACHINIST