Remanufactured 4.8L GM Vortec V8 Engine Assembly

A thorough visual inspection of each block for casting defects, meticulous disassembly with every part inspected for damage and the cause of failure identified. Oil and water passage plugs are removed to guarantee optimal results during thermal cleaning. Only premium castings are selected — never repaired castings or sleeved blocks on high-performance engines.

Our thermal cleaning system distributes heat evenly through the chamber, avoiding overheating or warping. Components are heated in an oxygen-deficient atmosphere that decomposes combustible hydrocarbons and leaves parts dry. The Ace RKE 230 oven is used exclusively for cast-iron blocks.

Stainless-steel shot removes surface contamination like rust for a smoother finish — vital for detecting surface and subsurface defects — while the peening process imparts compression strength to the metal.

Magnetic particle inspection detects cracks and imperfections in ferrous engine parts, ensuring the highest quality for our cast-iron blocks.

Aluminum blocks first go through the AXE SW20 OS spray cleaning system, whose multi-integrated nozzles remove all foreign material — crucial for a thorough inspection.

Ultrasonic cleaning — the benchmark in cleanliness — reaches inaccessible areas and breaks the bonds holding small particles to surfaces before pressure testing.

The Delta pressure tester double-checks for pinholes after magnafluxing and dye testing, ensuring the integrity of every casting used in our products.

After a complete visual inspection we repair minor casting defects, remove broken bolts, tap threads and perform gasket surface repairs to minimize stock removal.

The RMC CNC V40 enclosed machining center measures and levels blocks and measures deck heights and cylinder bore sizes, eliminating operator error. It determines the Ra finish based on block type and gasket, using CBN cutters and checking surface finish with the Mitutoyo SJ-301.

The Sunnen LBB-1600 hone, accurate to within .0001″, reconditions rods and fits pins so honed bores are equal to or better than new. High-performance engines get ARP high-strength bolts and nuts first.

Rottler’s newest cylinder honing machine finishes cylinders within .0001″ roundness and straightness, continuously analyzing and correcting the bore to hold the critical oil clearances modern engine designs demand.

After precise machining, every block undergoes a second high-pressure wash cycle for absolute cleanliness before final assembly.

All parts are ultrasonically cleaned prior to assembly, reaching every surface and internal area to meet the most stringent cleanliness standards.

Each assembler conducts a thorough visual inspection and measures parts for proper size. Blocks are fitted with new cam bearings, oil restrictors, relief valves and new water and oil plugs; heads are installed with new bolts and gaskets and each cylinder’s seal integrity is checked. A final inspection by our assembly manager signs off every engine.

Yes, for most owners and fleets. A used 4.8L may already have worn rings, tired lifters, low oil pressure or leaking seals from 200,000+ miles of work. A Fraser remanufactured 4.8L is a zero-mile build with a remanufactured block and heads, new pistons, rings, bearings, timing components, oil pump, gaskets and seals, VIN-verified fitment and a 3- or 5-year unlimited-mile warranty.

1999–2013 Chevrolet Silverado 1500 and GMC Sierra 1500, 2000–2009 Tahoe, Suburban 1500 and Yukon, and 2003–2013 Express 1500 and Savana 1500 — LR4, VIN V.

No. The 4.8L LR4 (VIN V) shares the LS architecture with the 5.3L but uses a shorter stroke and different pistons and crank, and it is not interchangeable with the 5.3L (VIN T / Z / J) or the later Gen IV 4.8L (VIN C). Fraser matches the correct engine to your full 17-character VIN before shipment.

The OEM-spec reman ($2,650) is a zero-mile long block with a 3-year warranty. The Fraser Advantage™ build ($3,199) adds an upgraded block, updated heads, an updated oil pump, a premium sealing package and every OEM and aftermarket TSB update, with a 5-year warranty plus 1 year of free No-Fault coverage.

Yes — the Fraser Advantage™ build includes the oil pan, timing cover and valley cover. Confirm your exact build on your written quote or order confirmation.

Yes. Shipping and core pickup are free to any commercial address in the continental United States.

Yes. 1- to 5-year No-Fault protection ($99–$499) can be added at checkout. The Fraser Advantage™ option already includes 1 year of No-Fault coverage free.