High-Performance Motorcycle Cylinder Block – Precision Engineered for Durability
Upgrade your engine with our 57MM/61MM cylinder block, crafted from premium-grade aluminum alloy for superior heat dissipation and longevity. CNC-machined to exact tolerances for seamless compatibility with 3W4S engines, ensuring optimal compression and fuel efficiency.
Built for Heavy-Duty Performance
Precision-bored cylinder walls with a hardened nickel-silicon coating reduce friction and wear, ideal for high-RPM racing or long-distance touring. The reinforced base design prevents warping under extreme conditions, delivering consistent power output.
Direct Factory Wholesale Pricing
Source from our global supply chain at unbeatable bulk rates—no middlemen, just industrial-grade quality at the lowest prices. Stock up for workshops, dealerships, or large-scale rebuild projects.
Universal Fitment & Reliability
Trusted by mechanics for OEM-level precision. Fits most 3W4S engine configurations, making it a go-to choice for replacement parts or performance upgrades. Ships ready to install with a mirror-smooth finish for immediate use.
Ideal for:
- Racing bike engine rebuilds - Commercial motorcycle repair shops - Cost-effective fleet maintenance - DIY performance enthusiasts Maximize engine life and power—order in bulk today.