{"product_id":"performance-engine-rebuild-re-ring-kit-for-chevrolet-silverado-1999-2013-4-8l-5-3l","title":"Performance Engine Rebuild Re-Ring Kit for Chevrolet Silverado (1999-2013) 4.8L 5.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Engine Rebuild Re-Ring Kit for 1999-2013 Chevrolet Silverado (GMT800 \/ GMT900)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Silverado Piston Ring \u0026amp; Seal Degradation\u003c\/h3\u003e\n\u003cp\u003eHigh-mileage \u003cstrong\u003eGMT800\u003c\/strong\u003e and \u003cstrong\u003eGMT900\u003c\/strong\u003e trucks powered by factory \u003cstrong\u003eVortec 4800\u003c\/strong\u003e and \u003cstrong\u003eVortec 5300\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 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 \u003cstrong\u003eGen III\u003c\/strong\u003e and \u003cstrong\u003eGen IV\u003c\/strong\u003e LS architecture.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Gen III Valley Cover Gasket (OE \u003cstrong\u003e12558178\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2 LS1\/LS2\/LS3 Header Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 LS Oil Pan Gasket\u003c\/li\u003e\n  \u003cli\u003e2 LS Water Pump Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 LS Front Cover Gasket\u003c\/li\u003e\n  \u003cli\u003e2 LS Valve Cover Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 LS Damper Seal\u003c\/li\u003e\n  \u003cli\u003e1 LS Rear Cover Gasket\u003c\/li\u003e\n  \u003cli\u003e1 Rear Main Seal\u003c\/li\u003e\n  \u003cli\u003e4 Water Crossover \/ Block Off Gaskets (OE \u003cstrong\u003e12551933\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e1 Oil Filter Adapter Bypass Gasket (OE \u003cstrong\u003e12611384\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2 Knock Sensor Grommets (OE \u003cstrong\u003e12558177\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2 Multi-Layer Steel (MLS) Head Gaskets\u003c\/li\u003e\n  \u003cli\u003e1 Bolt Kit\u003c\/li\u003e\n  \u003cli\u003e1 Piston Rings Set (4.8L \/ 5.3L Bore Specific)\u003c\/li\u003e\n  \u003cli\u003e1 Main Bearings \u0026amp; Connecting Rod Bearings Set\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e1999-2013 Chevrolet Silverado\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e4.8L \u0026amp; 5.3L Gen III\/IV LS \/ GMT800 \u0026amp; GMT900\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e255–326 hp \/ 285–350 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e12558178, BTR73450, 12617944, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033, MS2199, CB-663, E-937K, 2M4978\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1999-2013 Chevrolet Silverado 1500 (4.8L V8 LR4, LY2, L20)\u003c\/li\u003e\n  \u003cli\u003e1999-2013 Chevrolet Silverado 1500 (5.3L V8 LM7, L59, LM4, L33, LY5, LMG, LC9, LH6)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT800 and GMT900 Silverado?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2013 Chevrolet Silverado equipped with the 4.8L and 5.3L small block engines. \u003cstrong\u003eThis kit will not fit 6.0L (LQ4, LQ9, LY6, L96) or 6.2L engines due to differing bore dimensions.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre intake manifold gaskets included in this rebuild kit?\u003c\/h4\u003e\n\u003cp\u003eIntake manifold gaskets are not included in this package and must be purchased separately based on your specific intake runner port shape.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eSilverado 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.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67551505252600,"sku":"DS-E3WOTMUAM","price":188.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-engine-rebuild-re-ring-kit-for-chevrolet-silverado-1999-2013-4-8l-5-3l-1.jpg?v=1790797846","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-engine-rebuild-re-ring-kit-for-chevrolet-silverado-1999-2013-4-8l-5-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}