Mercedes-AMG M177 Forged Internals — Rods & Pistons Kit ★ 1,500HP+ Rated

The Mercedes-AMG M177 4.0L twin-turbo V8 is the heart of the W205 C63, W213 E63, and AMG GT family. The stock M177 rods become the limiting factor above 700HP under sustained high-boost operation — ours don't. Built to handle 1,500HP+ cylinder pressures, this forged internals kit is engineered for builds that push far beyond what factory cast components can survive.

What's Included

• 8x Forged Connecting Rods — 4340 aircraft-grade steel, H-beam design
• 8x Forged Pistons — CP or Carrillo, 83mm bore compatible
• ARP Rod Bolts — 220,000 PSI rated
• Piston Rings — Low-tension performance ring pack
• Wrist Pins & Clips — High-strength tool steel
• Balanced and Matched Set — within ±1.5g
• Compatible with YPG Stage 4 turbo kit and all methanol/E85 builds

Key Features

• Ceramic-Coated Piston Tops — Thermal barrier coating reduces heat transfer to the piston crown, protecting against detonation at high boost levels
• Teflon-Coated Skirts — Anti-friction coating reduces piston-to-wall contact friction, improving reliability and reducing wear under sustained high-RPM operation
• Factory Compression Ratio — Maintains stock compression geometry for seamless integration with OEM or aftermarket ECU calibrations
• 1,500HP+ Rated — Engineered and validated for extreme boost, race fuel, and sustained high-RPM operation
• Drop-In Fitment — Direct replacement for factory rods and pistons, no block modifications required

Only need pistons?
If your factory M177 rods are still serviceable, we offer standalone forged piston sets at $3,299.99 — same 1,500HP+ spec with ceramic-coated crowns and Teflon-coated skirts.
C63 W205 Forged Pistons → | E63 W213 Forged Pistons →

Complete the M177 Build

Forged internals are the foundation. Build up from here with matched YPG components:

• M177 Crate Engine ($29,999.99) — Complete forged long block with heads, ready for installation
• M177 Short Block ($23,000) — Forged short block, add your own heads
• Stage 4 Turbo Upgrade ($8,999.99) — 1,500HP+ full-billet turbos
• Stage 3 Turbo Upgrade — Ball-bearing hybrid turbos for 1,000HP+ street builds
• W205 C63 Catless Downpipes | W213 E63 Downpipes | GLC63 Downpipes

Stage 3 Packages by Chassis

• Mercedes-AMG C63 W205 Stage 3 Package
• Mercedes-AMG E63 W213 Stage 3 Package
• Mercedes-AMG GLC63 X253 Stage 3 Package
• Mercedes-AMG GT63 C192 Stage 3 Package

M177 Tuning Guides

Deep-dive resources on the M177 platform from YPG Motorsport:

• M156 vs M177 vs M178 — Complete AMG Engine Comparison Guide
• Mercedes-AMG GT ECU Tuning — Every Model, Every Stage
• AMG GT Stage 4 Turbo Upgrade — Complete Guide
• M178 Crate Engine — AMG GT Buyer's Guide
• How the YPG ECU Flash Process Actually Works

Compatible Vehicles

• Mercedes-AMG C63 / C63 S (W205) — 2015–2021 — Sedan, Coupe, Cabriolet
• Mercedes-AMG E63 / E63 S (W213) — 2017+
• Mercedes-AMG GLC63 / GLC63 S (X253/C253) — 2017+
• Mercedes-AMG GT 63 / GT 63 S (C192) — 2018+
• Mercedes-AMG GLE63 / GLE63 S (V167) — 2019+
• Mercedes-AMG GLS63 (X167) — 2020+
• Mercedes-AMG G63 (W463A) — 2018+
• Mercedes-AMG S63 (W223) — 2022+
• Engine: M177 4.0L Twin-Turbo V8 (DE40 AL)

Why YPG Motorsport?

YPG Motorsport holds the world record for the first sub-10-second Mercedes-AMG C63 W205 quarter mile — 9.97s at 828 WHP, set at Beech Bend Raceway Park, Kentucky on April 9, 2019. That record was set on a stock M177 bottom end — proof of how far the factory internals can go with the right calibration. For builds pushing past factory limits, our forged internals kit provides the margin the stock components don't. Every kit is sourced from CP-Carrillo or equivalent tier-1 forging houses, inspected and balanced before shipping.

Ships worldwide via FedEx International Priority from Kuwait.

Ordering from the GCC?
Ships FedEx International Priority from Kuwait. Dubai and Abu Dhabi in 48–72 hours. Doha, Riyadh, Jeddah in 48–72 hours.
UAE customers → | Qatar customers → | Saudi Arabia customers →