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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...
M178 Crate Engine Build — Complete 4.0L Dry-Sump Twin-Turbo V8 for AMG GT, GTS & GTR
The Mercedes-AMG M178 is the dry-sump variant of AMG's 4.0L twin-turbo V8 — purpose-built for the two-door AMG GT platform. Found exclusively in the AMG GT, GTS, GTR, GT R Pro, and GT Black Series, it shares the M177's bore and stroke but uses a completely different dry-sump oil system, block casting, and accessory layout. At YPG Motorsport, we build complete M178 crate engines with forged internals for 1,500 HP+ capability. What Is an M178 Crate Engine? A crate engine — or long block — is a fully assembled engine ready for installation. Our M178 crate engines include the forged...
M177 Crate Engine Build — Complete 4.0L Twin-Turbo V8 Long Block for C63, E63 & GT63 AMG
The Mercedes-AMG M177 is the workhorse of AMG's modern lineup — a 3,982 cc twin-turbo V8 with the now-legendary hot-inside-V turbo layout. It powers the C63 AMG (W205), E63 AMG (W213), AMG GT 63, GLC63, GLE63, and more. At YPG Motorsport, we build complete M177 crate engines with forged internals, race-spec tolerances, and the hardware to support 1,500 HP+ with upgraded turbochargers. What Is an M177 Crate Engine? A crate engine — also known as a long block — is a fully assembled engine ready to install. Our M177 crate engines include the complete rotating assembly (forged crankshaft, forged H-beam...
M156 Crate Engine Build — Complete 6.2L V8 Long Block for C63, SLS & CLK63 AMG
The Mercedes-AMG M156 is one of the most celebrated naturally aspirated V8 engines ever built — 6,208 cc of hand-assembled, high-revving fury that powered the C63 AMG (W204), SLS AMG, and CLK63 AMG Black Series. At YPG Motorsport, we build complete M156 crate engines from the ground up using forged internals, race-spec clearances, and decades of AMG tuning experience. What Is an M156 Crate Engine? A crate engine — also called a long block — is a fully assembled engine ready to drop into your chassis. Our M156 crate engines include the complete rotating assembly (forged crankshaft, forged H-beam connecting...