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Short Block vs Long Block vs Crate Engine — What's the Difference?
If you are shopping for an AMG engine build, you have probably seen three terms: short block, long block, and crate engine. They describe different levels of engine assembly — and choosing the right one depends on the condition of your current engine, your budget, and your power goals. This guide breaks down exactly what each one includes, when to choose it, and how they compare. Quick Comparison Build Level What's Included You Supply Best For Short Block Block, crankshaft, connecting rods, pistons, bearings, internal seals Cylinder heads, intake, exhaust, turbos, accessories, wiring Healthy heads, bottom end needs rebuild Long...