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The M178 short block gives AMG GT owners a fully forged, race-spec bottom end for their dry-sump 4.0L twin-turbo V8. Built in-house at YPG Motorsport in Kuwait with the same forged rotating assembly that goes into our complete M178 crate engines. Balanced, blueprinted, and ready for your heads and accessories. What Is an M178 Short Block? A short block is the engine's bottom end: block, crankshaft, connecting rods, pistons, bearings, and internal seals. It does not include cylinder heads, turbochargers, the dry-sump oil system, or accessories. You supply your own heads — either your originals or our M178 CNC-ported heads...

The M177 short block is the foundation of every big-power AMG 4.0L build. When you are pushing past 700–800 HP on the twin-turbo V8, the factory cast pistons and powder-metal rods become the limiting factor. Our M177 forged short block replaces them with a fully balanced, blueprinted bottom end built for 1,500 HP+ — assembled in-house at YPG Motorsport in Kuwait. What Is an M177 Short Block? A short block is the engine's bottom end: block, crankshaft, connecting rods, pistons, bearings, and internal seals. It does not include cylinder heads, turbochargers, intake, exhaust manifolds, or accessories. You supply and install...

If your M156 bottom end is the weak link — spun bearing, cracked piston, worn cylinders — our M156 short block build gives you a fully forged, race-spec bottom end ready for your heads and accessories. Built in-house at YPG Motorsport in Kuwait, every short block is blueprinted, balanced, and assembled to proven clearances that handle serious power. What Is an M156 Short Block? A short block is the foundation of your engine: the block itself, crankshaft, connecting rods, pistons, bearings, and all internal seals. It does not include cylinder heads, intake, exhaust manifolds, or accessories. You supply and install...