Performance Engine Rebuild Re-Ring Kit for Chevrolet Silverado (1999-2013) 4.8L 5.3L

Heavy-Duty Engine Rebuild Re-Ring Kit for 1999-2013 Chevrolet Silverado (GMT800 / GMT900)

What it Does: The Performance Engine Rebuild Re-Ring Kit renews cylinder compression, eliminates crankcase blow-by, and restores critical crankshaft bearing clearances for 1999-2013 Chevrolet Silverado 4.8L and 5.3L V8 engines.

The Stock Chevrolet Silverado Piston Ring & Seal Degradation

High-mileage GMT800 and GMT900 trucks powered by factory Vortec 4800 and Vortec 5300 small blocks routinely suffer from oil consumption and crankcase pressurization. Over extended thermal cycles, factory oil-control rings carbonize and stick, losing radial tension against the cylinder walls. Simultaneously, cyclic crankshaft thrust loads accelerate babbitt layer wear on rod and main journal bearings, degrading hydrodynamic oil wedge support. Hardened factory elastomer perimeter gaskets—notably rear main seals and valley pan seals—eventually weep under standard crankcase pressures, dropping oil volume and risking oil starvation.

The Engineering Solution

This re-ring overhaul package replaces critical wear items with high-tensile components engineered for thermal endurance. High-grade compression and oil-control rings establish clean cylinder wall conformability for stable dynamic compression under sustained towing loads. Premium multi-layer steel (MLS) head gaskets withstand elevated combustion chamber peak cylinder pressures without thermal distortion. Complete with premium rod and main bearings, reinforced timing cover seals, and heat-resistant Viton rear main and damper seals, this rebuild kit eliminates blow-by and oil leaks to return factory-grade oil pressure across the journal journals of your Gen III and Gen IV LS architecture.

What's Included

• 1 Gen III Valley Cover Gasket (OE 12558178)
• 2 LS1/LS2/LS3 Header Gaskets
• 1 LS Oil Pan Gasket
• 2 LS Water Pump Gaskets
• 1 LS Front Cover Gasket
• 2 LS Valve Cover Gaskets
• 1 LS Damper Seal
• 1 LS Rear Cover Gasket
• 1 Rear Main Seal
• 4 Water Crossover / Block Off Gaskets (OE 12551933)
• 1 Oil Filter Adapter Bypass Gasket (OE 12611384)
• 2 Knock Sensor Grommets (OE 12558177)
• 2 Multi-Layer Steel (MLS) Head Gaskets
• 1 Bolt Kit
• 1 Piston Rings Set (4.8L / 5.3L Bore Specific)
• 1 Main Bearings & Connecting Rod Bearings Set

Technical Specifications

Compatibility

• 1999-2013 Chevrolet Silverado 1500 (4.8L V8 LR4, LY2, L20)
• 1999-2013 Chevrolet Silverado 1500 (5.3L V8 LM7, L59, LM4, L33, LY5, LMG, LC9, LH6)

Frequently Asked Questions & Fitment Warnings

Does this fit the GMT800 and GMT900 Silverado?

Yes, this is a direct fit for the 1999-2013 Chevrolet Silverado equipped with the 4.8L and 5.3L small block engines. This kit will not fit 6.0L (LQ4, LQ9, LY6, L96) or 6.2L engines due to differing bore dimensions.

Are intake manifold gaskets included in this rebuild kit?

Intake manifold gaskets are not included in this package and must be purchased separately based on your specific intake runner port shape.

The Chevrolet Heavy-Duty Caliber

Silverado work trucks require reliable bottom-end integrity to pull heavy payloads and rack up commercial mileage. Installing precision-matched bearings, tight-tolerance piston rings, and durable MLS head gaskets ensures your truck delivers uncompromised oil pressure and torque output under severe-duty towing conditions.