Introducing the all new Tillotson 225RS Long Block. A long block is considered the complete crank case (assembled) with a complete race ready head bolted to it. All you need after you buy this long block is a spark plug, flywheel, coil, exhaust, and carburetor set up. This long block is already assembled with high quality parts, pre-clearanced, and the valve lash is set.
Does not come with spark plug as shown in picture
Long Block Break Down:
- 72mm Tillotson Block (extra webbing, bracing, and thicker material is built into the casting producing a superior block to any other)
- Bore : 72mm / 2.835"
- Crank : 55mm / 2.165"
- 265 Lift Tillotson Racing Cam (wide power band, great for mini bikes and yard-karts, equipped with compression release)
- Forged Rod with bearings
- Forged, Lightweight Racing Piston
- Tillotson Race Head (Large Ports)
- 27mm Intake Valve
- 25mm Exhaust Valve
- 26lb Valve Springs
- Heavy Duty Retainers with Automotive style keepers
CAUTION!!!! This long block is not for inexperienced builders/drivers. These engines are shipped with NO OIL. We recommend a high quality oil designed for splash oil systems such as Thor Oil or AmsOil 4T to provide better protection. Always keep 16 ounces of oil in the engine while in use. *Block does not have tabs for mounting a fuel tank.
break in will be required
Not eligible for Free Shipping.
6 Reviews Hide Reviews Show Reviews
I use the 225 on my flat kart. Out of the box on methanol. I have a complete season and a half with no problems. I bought a second for a 236 build. Awesome motor.
If you going to buy an engine, this is the 1 to buy. Tons of power, blows any 212 out of the water. I love these engines.
The 225 runs amazing I have ran it about 20+ hours very powerful engine I love the sound with the hot cam installation was easy the side cover and clutch too a fine thread standard thread bolt which threw me off at first but other than that I’d definitely buy it again
This engine makes my MB200-2 do wheelies. 55 mph with 60tooth sprocket. Note: this engine does not come with a spark plug.
I purchased a long block and then I purchased a fly wheel I used an existing coil in Mikuni carburetor I am having problems starting it should I check the valve adjustment
225RS Tillotson Engine Long Block