What Are Remanufactured Short Blocks?


Quick Answer

Remanufactured short blocks are remanufactured replacement engine assemblies, specifically the sections located above the oil pan and below the cylinder head gaskets. They do not include the pan gasket, head gasket and oil pump. Most remanufactured engines are partially refurbished and cleaned. Their minor components are replaced with new ones.

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Full Answer

Remanufactured short block engines are completely disassembled and chemically or thermally cleaned, sand blasted and inspected. The crankshaft and camshaft are reconditioned, regrounded or replaced, and cylinders are rebored or honed. The connecting rods of the short blocks are thoroughly inspected and resized or replaced if necessary.

Block resurfacing and precision assembly of each component completes the reassembly process of short block engines. Pistons, piston rings, wrist pins, cam bearings and timing components are either refurbished or replaced with new ones. The remanufactured short block is tested to ensure it matches the standards of the original engine.

Remanufactured engines are built on the original equipment specifications at a fraction of a new engine's cost. Most of these engines are made from original vehicle parts and refurbished to precisely match original factory specifications and standards. Some sellers of remanufactured short blocks provide a certification and warranty to back up their performance.

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