Mercedes-AMG M113K Forged Internals — Rods & Pistons Kit
The Mercedes-AMG M113K 5.4L supercharged V8 is the legendary Kompressor engine behind some of AMG's most iconic models — the SL55, E55, CLS55, S55, G55, CL55, and SLK55. Known for its bulletproof iron block and massive power potential, the M113K responds aggressively to pulley upgrades, ported superchargers, and increased boost — but the factory rods and pistons become the weak link at higher power levels.
YPG Motorsport's forged internals kit replaces the factory components with forged H-beam connecting rods and forged aluminum pistons, rated for 1,500HP+ and engineered to handle sustained high-boost abuse. Whether you're building a street-driven sleeper or a full-race M113K, this kit gives you the bottom-end strength to push the limits.
What's Included
- 8x Forged H-beam connecting rods (ARP hardware)
- 8x Forged aluminum pistons with rings and wrist pins
- Balanced and matched set
Why Upgrade
- Factory rods flex and fail under sustained high boost
- Forged pistons resist detonation and heat soak at high power levels
- Required for any serious M113K build pushing beyond factory power
- Drop-in fitment — no block machining required
Fits
- Mercedes-AMG SL55 (R230)
- Mercedes-AMG E55 (W211)
- Mercedes-AMG CLS55 (C219)
- Mercedes-AMG S55 (W220)
- Mercedes-AMG G55 (W463)
- Mercedes-AMG CL55 (C215)
Professional installation required. Contact YPG Motorsport for engine build packages and turbo conversion kits.
