Built to order. Configured for power, reliability and your exact needs.
 
 
PLEASE READ, YOU CANNOT PURCHASE THIS PRODUCT VIA THE WEBSITE  
PRICE LISTED IS ONLY AN BASIC GUIDE ONLY. CONTACT US DIRECTLY TO QUOTE
 
Fully assembled 13B long block, precision-built in-house using premium-grade components and tailored to suit your application — whether it’s drift, drag, circuit or high-end street. No two builds are the same.
 
All engines are custom-quoted depending on your goals, fuel system, ECU choice and supporting components. The price listed is a base starting point only and not to be take literally. 
 
 
Base long block includes:
 
Genuine Mazda rotor housings, rotors and stationary gears
Front, intermediate and rear end plates
Fully balanced rotating assembly
Apex, side and corner seals with complete seal kit
Engine dowels and thou bolts or stud kit
Front timing cover
Setup for wet or dry sump systems
 
 
Available upgrades & options:
 
 
Centre bearing eccentric shaft (billet or modified OEM)
Isotropic polishing
Steel or Ceramic apex seals
Competition bearings 
Rotor clearancing,  lighting, apex seal grove modifications
Street-port, bridge-port, semi-peripheral or full PP
Direct injection
Spark plug relief modifications
Cooling system modifications
Custom painting, powder coating, polishing of engine componets
 
Bolt-on components:
 
Intake manifold systems 
Dry sump oiling system
Multi-rib pulley kits and high-output alternators
Custom clutch and flywheel setups
Bolt accessories 
 
 
ECU & fuel system options:
 
Motec, FuelTech, Haltech, MicroTech
High-performance injectors, fuel rails and regulators
Sensor packages, crank triggers and looms
In-tank or external pump kits
 
 
Quoting & Ordering:
 
Due to the number of variables and custom configurations available, this engine cannot be purchased online directly. Contact us to discuss your project, and we’ll provide a tailored quote based on your exact needs.
 
Email: sales@billetrotary.com.au
📞 Call or WhatsApp: +61 417 238 033