Mercedes-AMG M178 Crate Engine — 1,500HP Forged Build
The Mercedes-AMG M178 4.0L twin-turbo V8 — the flat-plane crankshaft, dry-sump variant of the M177 found exclusively in the AMG GT family. Factory forged internals, hand-built in Affalterbach. The most exotic engine in the AMG lineup.
YPG builds every M178 crate engine in-house with upgraded forged internals rated to 1,500HP+. No core exchange required. Typical build time is 2-4 weeks with free worldwide shipping.
Engine Specifications
- Displacement: 4.0L / 3,982cc
- Configuration: V8 twin-turbo, hot-vee layout
- Lubrication: Dry-sump
- Crankshaft: Flat-plane forged — higher-revving character than the cross-plane M177
- Construction: Hand-built AMG, aluminum closed-deck block
- Stock Output: 462–730HP (GT base to GT Black Series)
- Max Potential: 1,500+ WHP with Stage VIP forged build
What's the Difference Between M177 and M178?
Both are AMG 4.0L twin-turbo V8s sharing the same block architecture. The M177 uses a cross-plane crankshaft and wet-sump lubrication — found in the C63, E63, GLC63, and G63. The M178 uses a flat-plane crankshaft and dry-sump lubrication — exclusive to the AMG GT family. The flat-plane crank gives the M178 a more exotic, higher-revving exhaust note and faster-responding power delivery, similar in character to a Ferrari V8.
What's Included
Complete forged long block assembly — heads, block, flat-plane forged crankshaft, forged connecting rods, forged pistons, and valve train. Ships as a long block, but can be configured with upgraded turbos, manifolds, and accessories depending on your build requirements. Contact YPG Motorsport to spec your build.
Compatible Vehicles
- Mercedes-AMG GT (2015+)
- Mercedes-AMG GTS (2015+)
- Mercedes-AMG GTC (2017+)
- Mercedes-AMG GTR / GTR Pro (2017+)
- Mercedes-AMG GT Black Series (2020-2022)
Build Process & Delivery
- Build time: 2-4 weeks from order
- Shipping: Free worldwide — USA, UK, Europe, Australia, Middle East
- Core exchange: Not required
- Support: WhatsApp direct support for GCC customers. Email support worldwide.
Pair With
- M177/M178 Forged Internals — Rods & Pistons
- Stage 2 AMG GTS M178 ECU Tune — DME Tuning
- Eventuri Carbon Intake — AMG GT
- Capristo Valved Exhaust — AMG GT
Price: $35,000 — Free worldwide shipping. Contact YPG Motorsport via WhatsApp for build consultation.
Frequently Asked Questions
How much does an M178 crate engine cost?
The YPG Motorsport M178 4.0L twin-turbo V8 forged crate engine starts at $35,000. Complete 1,500HP-capable build with forged internals, no core exchange required.
What is the difference between M177 and M178?
Both are AMG 4.0L twin-turbo V8 engines. The M177 is the longitudinal variant (C63, E63, AMG GT) and the M178 is the flat-plane crank variant used in the AMG GT R, GT Black Series, and GT S. The M178 has a higher-revving character.
What vehicles use the M178 engine?
The M178 is found in the Mercedes-AMG GT, GTS, GTR, GT R Pro, and GT Black Series.
Do you ship crate engines to the USA?
Yes. All YPG Motorsport crate engines ship worldwide for free. No customs issues — we handle international shipping regularly to the US, Europe, Australia, and the Middle East.