A stroker crank relocates the rod pin further out on the crank boss allowing for a larger throw of the piston. Adding to the stroke of the crank increases displacement which also increases torque. Depending on the amount of increase in stroke you may need to lift the cylinder with a spacer plate between the block and the cylinder base and you may even need to "trench" the cases. Trenching is where the cases must be modified to allow the relocated rod clearance so as not to rub the cases. You can usually get away with as much as as a 4mil stroked crank without having to worry about trenching though some 2-strokes can get away with as much as 6mil and some 4-strokes can barely get away with 2mil without trenching.
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2002 Banshee Ported cylinders, ported reed cages w/Boyeson dual-stage reeds, Wiseco stock bore, Flotek .035 milled head, K&N intake adaptor and filter, Trinity pipes (for now anyway), +3+1 arms, Fox TRX450R front shocks Badass without the big bill
1987/90 LT500 Ported cylinder, ported reedcage w/Boyeson dual stage reeds, Wiseco 530 bore, Trinity pipe with custom fabbed silencer, Custom fabbed 144 front hubs and 115 rears with Motorsport Alloys Tork wheels, Sidewinder chain and sprockets, other stuff It's a Zilla, 'Nuff said | 
07-20-2006
how is a stroker made and how dose it work?? 
Linear Mode
