Labwork Head Gasket Set Bolts Lifters For 05-14 GMC Buick Cadillac Chevrolet 5.3

Key Features

• Complete Top-End Restoration: An all-in-one rebuild solution engineered to fix common GM Active Fuel Management (AFM) issues, eliminate valvetrain ticking noises, and restore factory engine compression.

• Multi-Layer Steel (MLS) Head Gaskets: Provides a robust, high-pressure seal between the engine block and cylinder heads, maximizing combustion efficiency while preventing oil and coolant from mixing.

• High-Performance Hydraulic Lifters: Features precision-machined hydraulic roller lifters that use oil pressure to maintain zero valve clearance, ensuring quieter engine operation and a longer service life.

• Premium Complementary Components: Shipped with a complete high-grade gasket set, silicone sealant, and essential replacement head bolts required for a proper, leak-free reassembly.

Fitment Guide

Specifically designed for GM 5.3L V8 (16-Valve OHV / 325 CID) engines with AFM systems.

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Package Includes

• Engine Gasket & Seal Set:

  • Multiple Layers Steel (MLS) Head Gaskets

  • Valve Cover Gaskets & Valve Stem Seals

  • Intake Manifold Gaskets (Plastic Frame) & Exhaust Manifold Gaskets

  • Front Camshaft Seal, Performance O-Rings, & Miscellaneous Small Gaskets

  • 1 x Tube of RTV Silicone Sealant

• Valvetrain Hardware Set:

  • 8 x AFM (Active Fuel Management) Hydraulic Roller Lifters

  • 8 x Non-AFM Hydraulic Roller Lifters

• Cylinder Head Fasteners:

  • 30 x Torque-to-Yield Head Bolts (20 Long Bolts: 100mm / 10 Small Bolts: 45mm)

Important Buyer Notes

• One-Time Use Fasteners: The included cylinder head bolts are Torque-to-Yield (TTY) fasteners designed to stretch upon final torque sequence. They cannot be reused once installed.

• Pre-Lubrication Required: To ensure a safe initial startup, all hydraulic roller lifters should be thoroughly submerged and primed with clean engine oil prior to valvetrain installation.

• Professional Installation Recommended: Top-end engine replacement requires specialized mechanical knowledge, precise torque tools, and a clean environment. Professional installation by a certified automotive technician is highly recommended.

Customer Support & Warranty

Buy with Confidence: We stand behind the quality of our products. We provide excellent after-sales service for any items damaged during delivery or those with a confirmed manufacturer defect.

Need Help?: If you are unsure about fitment or have any questions regarding your order, please feel free to contact us. We are dedicated to providing you with a 100% satisfactory solution!