PERFORMANCE

Introducing the last connecting rod option your 900 Rotax engine will ever need! The WSRD Ultimate - Big Pin Connecting Rod Set is featured in all of our big horsepower engine packages; the V3, V4 and V5. From class records powering 46/50mm turbos to...

Introducing the last piston option your 900 Rotax engine will ever need! The WSRD Ultimate - Big Pin Piston Set is featured in all of our big horsepower engine packages; V3, V4 and our coming soon V5!From class records powering 46/50mm turbos to supporting...

WSRD continues to push the envelop with the 900ACE Rotax Engine. Piston development has been a key component to all of our engine packages. Through trial and error, even component failures we are extremely excited to release our Ultimate High Compression HD Big Pin...

The perfect solution for big power and high RPM! The WSRD Solid Bucket Conversion Kit is found in all WSRD CNC Ported "Drag" V4 Cylinder Head Packages. The WSRD Solid Bucket Conversion was major part of the engine package featured in D&M Racing's World's...

The complete Long Block Assembly solutions! All Long Block Assemblies are built around a customer supplied engine core. The processes included for a complete assembly are built from oil sump to valve cover and stator cover as drop in, ready to install long blocks....

WSRD V1 Closed Deck Short Block Package (Rated to 400HP)What's Included? WSI Closed Deck Engine Block Service WSRD Terminator Piston Set WSRD Terminator Head Stud Set WSRD Terminator Head Gasket New OEM BRP Connecting Rod Bolts New OEM BRP Connecting Rod Bearings New OEM...

From mild to wild and everything in between, WSRD offers cylinder head and engine packages to suite your application and power needs!  **All cylinder head package pricing includes a client supplied cylinder head core. Please ship WSRD your completely assembled cylinder head. All unused...

The complete Long Block Assembly solutions! All Long Block Assemblies are built around a customer supplied engine core. The processes included for a complete assembly are built from oil sump to valve cover and stator cover as drop in, ready to install long blocks....

WSRD V1 Short Block Package (Rated to 400HP)What's Included? WSRD Terminator Piston Set WSRD Terminator Head Stud Set WSRD Terminator Head Gasket New OEM BRP Connecting Rod Bolts New OEM BRP Connecting Rod Bearings New OEM BRP Main Bearings New OEM BRP Thrust Washers...

The complete Long Block Assembly solutions! All Long Block Assemblies are built around a customer supplied engine core. The processes included for a complete assembly are built from oil sump to valve cover and stator cover as drop in, ready to install long blocks....

WSRD V2 Closed Deck Short Block Package (Rated to 475HP)What's Included? WSI Closed Deck Engine Block Service WSRD Terminator Piston Set WSRD Terminator Connecting Rod Set WSRD Ultimate Head Stud Set WSRD Terminator Head Gasket WSRD Billet PTO Cover (Includes new PTO Bearing, Seal...

The complete Long Block Assembly solutions! All Long Block Assemblies are built around a customer supplied engine core. The processes included for a complete assembly are built from oil sump to valve cover and stator cover as drop in, ready to install long blocks....

WSRD V3 Closed Deck - Big Pin Short Block Package (Rated to 550HP)What's Included? WSI Closed Deck Engine Block Service WSRD Ultimate - Big Pin Piston Set WSRD Ultimate - Big Pin Connecting Rod Set WSRD Crankshaft Balance Service WSRD Ultimate Head Stud Set...

The complete Long Block Assembly solutions! All Long Block Assemblies are built around a customer supplied engine core. The processes included for a complete assembly are built from oil sump to valve cover and stator cover as drop in, ready to install long blocks....

WSRD V4 Closed Deck - Billet Girdle Short Block Package (Rated to 650HP) What's Included? WSI Billet Engine Girdle WSI Closed Deck Engine Block Service WSRD Ultimate - Big Pin Piston Set WSRD Ultimate - Big Pin Connecting Rod Set WSRD Crankshaft Balance Service WSRD...