87cc Ms460 Stihl chainsaw cylinder engine

Grubee Inc


Here's a 87cc Powerhouse built by the famous Comanche Ken Hinsen over at Scuttle Bucket Motors.

What the Phantom 85 was supposed to be like but failed. 

This is the Ms460 87cc Stihl chainsaw cylinder with corresponding piston and needle bearing wrist pin.   No bushing!   

Bore 54mm Stroke 38mm

Ported and polish cylinder

Heavy duty clutch spring. 

Balanced crank 

Does not have the SkyHawk bottom half.  Sorry, Supplier unknown, possibly YD, >YuanDong.  

After installing a MZ85 Plenum Chamber exhaust pipe, G2 Reed valve and a 21mm Carb you will have a true buzz saw engine that will take enthusiasm into fear!   This engine is for the more advanced and mechanically inspired rider.        

Your engine will be dropped shipped direct from the Ken Hinsen factory in Comanche Oklahoma.   

All customer service will be handled direct with Ken. 


Ken operates Scuttle Bucket Engines full time and he definitely knows how to make a 2 stroke scream and pull to the house!   

Ken's business is making USA assembled and tested 2 stroke High Performance bicycle engines. 

Instead of using aluminum cylinders with iron sleeves or one with Chrome plated ID coating he goes one better by fitting a special aluminum Nikasil 13,000 rpm Chain Saw integral cylinder on top of a custom assembled YD engine bottom 1/2.   

  • Yes, his engines are expensive but worth every penny if you want confirmed Hi Rev Horsepower.     

  • 87cc with 54x38 high rev displacement with a Nikasil coated cylinder. 

  • Note:  Contrary to Chinese advertising a 38mm short stroke is actually better for Hi Rev capability than a 40mm stroke.

  • Ken assembles all his engines from separate piece parts.     

  • His engine clutch is custom made heavy duty with 3 colorful springs that do not slip under load.   Yes, the clutch lever pull will require a little more effort to disengage. 

  • He orders the engine bottom 1/2 totally unassembled less bearings and does all the final machining, assembly and fitting himself.  

  • Ken uses the combo piston/conn rod weight and flywheel metal displacement calculation method to balance the crank for a more smoother operation.  

  • NOTE: Cheap needle bearings are the weak link when hopping up a standard China doll engine.   Therefore, Ken uses US supplied high quality needle bearings and crank ball bearings for long life enhancement.   

  • No cheap oil lite wrist pin bushing like found in the Phantom 85. 

  • He ports and polishes the cylinder for max. efficiency.

  • Our Job:  We use our Shopify platform as a sales venue for Ken to distribute his engines.   We drop ship your order direct from his little factory over in Comanche OK.     

  • Ken can tell you where to buy the best carburetor to use for your intended application.  Ken  warranties his long blocks directly with you. 

  • After you place your order we will supply you with his contact information so you can communicate directly with Ken on any product question, warranty or installation issue.  

  • NOTE:  If you want your engine run tested on a bike frame Ken has an additional 1 hour extra charge that can be paid directly to his PayPal account.     Not included here-in. 

  • Ken's machine shop is open Wednesday thru Saturday, Closed on Sunday, Monday & Tuesday.   

  • Please understand that these engines are not for the weak hearted Sunday rider operating on a low key budget.   

  • You will need to purchase a carb and expansion chamber exhaust to complement this engine's robust power.