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M178 CNC-Ported Heads — Flow-Matched Cylinder Heads for AMG GT Dry-Sump 4.0L V8
The AMG GT platform demands heads that can flow under sustained high-RPM, high-boost, high-heat conditions — lap after lap. Our M178 CNC-ported heads are flow-bench developed for the dry-sump 4.0L V8, assembled with upgraded valvetrain, and sold as a matched pair. Built at YPG Motorsport in Kuwait, shipped worldwide. What Are CNC-Ported Heads? CNC porting reshapes the intake and exhaust ports using computer-controlled machining to our flow-bench program. Every port is cut to identical runner volumes and matched flow rates across all eight cylinders. On a twin-turbo engine like the M178, ported heads reduce pumping losses, improve turbo spool, and...
M178 Short Block Build — Forged 4.0L Dry-Sump V8 Bottom End for AMG GT, GTS & GTR
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...
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...