A few options exist for buying a remanufactured engine, but all should come from wrecked cars with otherwise sound engines. The most basic is the short block. A short block will include the engine block and the rotating assembly housed within it: crankshaft, connecting rods, and pistons. Short blocks are good options for high-performance car owners using aftermarket cylinder heads.
Next, the long block is essentially a short block with the addition of cylinder head(s) and associated valve train components. Long blocks are typically the best option for balancing cost and ease of installation. Installing a remanufactured long block requires reusing or buying new engine peripherals, such as intake manifold, starter, water pump, fuel injectors, ignition system components, etc.
Buying a complete engine can simplify the installation process as it often comes ready to put in the vehicle. However, don’t assume anything and ask detailed questions, like, “What else is needed to complete the installation?” You’ll often need to provide the alternator, starter, and other accessories.
