940 big bore for fmxfzr 800 and 8000

GO HUGE with Bikeman Performance’s 940 Big Bore kit. It makes 207 horsepower and over 135 foot-pounds of torque. The kit has been tested in low and high altitudes. Cylinders and exhaust valves will need to be exchanged. Cylinders are bored, fully ported for optimum flow, then re-plated. Exhaust valves are grounded for the bigger bore and to match the porting. Kit includes: exchange of Big Bore cylinders, exchange of exhaust valves, two pistons with rings, circlips and wristpins, Big Bore Billet Head Kit, exhaust valve spacers, timing key, ceramic single pipe, ceramic Y-pipe, Power Commander 5, stage 2 clutch kit, Boyesen Rage Cages and 50mm throttle bodies. Cost is $4,595. More info: www.bikemanperformance.com, 715-483-3003
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