The Wildcat 240cc Short Block is a standout in the small engine market, offering the largest factory-displacement available in a small-block platform. This fully assembled short block gives you the flexibility to build your engine your way, whether you're upgrading an existing build or starting from scratch with high-performance components.

Build It Your Way

You can tailor your Wildcat build by reusing parts from another engine or by installing premium new components. For example, our WC946-5 performance cylinder head is already ported and designed to support high-lift camshaft setups and methanol carburetors.

 Wildcat 240 Engine Highlights

Displacement & Configuration

- 240.11cc achieved via a 72mm bore (same as Tillotson 225/228/236) paired with a 59mm stroke crankshaft

- Delivers "big block" displacement in a small block footprint—think of it as the 427ci LS of the minibike and kart world

- ¾-inch output shaft compatible with most standard clutches and driveline components

Camshaft

- Comes pre-installed with the Banzai 265 camshaft, the go-to upgrade for high-performance minibikes and karts

- Based on the new 224 core, so no cam clearance mods are needed around the longer 59mm crank.

- Boosts power and responsiveness right out of the box

Flywheel

- Equipped with a lightweight cast aluminum flywheel rated to 8,500 RPM for safety and performance

- No ignition coil included – choose from rev-limited or non-limited coils based on your application

- If exceeding 6,200 RPM, we recommend upgrading to a billet connecting rod

Side Cover

- Similar to the Ghost 212 side cover, this version includes a top-mounted oil fill port for easier access

- Convenient location for installing a pulse fitting or 280 PCV valve without needing to modify the block or valve cover

Top Plate & Fuel Pump

- Includes a top plate and aluminum fuel pump—ideal for use with a WC22 carburetor

- Designed for setups where the fuel tank sits lower than the carb; bypass the pump if using an elevated gravity-feed tank

Pull Rope Handle

- Thoughtful detail: features a sturdy soft-grip pull handle instead of cheap plastic for better comfort and durability

Specifications

- Displacement: 240.11cc (72mm flat-top piston x 59mm stroke crankshaft)

- Camshaft: 265 Lift Banzai cam (new 224 cam core for easier installation)

- Block: Reinforced cast

- Flywheel: Lightweight cast aluminum

- Rod: Cast (upgrade recommended for high-RPM use)

- Side Cover: With top oil fill port (PCV/pulse ready)

- Fuel System: Top plate with aluminum fuel pump

Please Note:

This is a short block assembly only – it does not include the following:

- Cylinder head, valve train, valve cover

- Carburetor or push rods

- Head gasket or ignition coil

Designed for experienced builders – no warranties expressed or implied

The Wildcat 240 Short Block delivers unmatched displacement in a compact package, making it a powerful platform for racers, builders, and custom engine enthusiasts alike.