1240 MACH Z TWIN BIG BORE

The 1240 Big Bore Kit will produce an additional 27 hp over a piped and ported Mach Z. The package consists of new cylinders (individual), head, 98mm coated pistons, and silenced trail pipes. Disassemble and assemble is NOT included in the package price. Send your crank, crank case, and your rave parts. You will need to also run a fuel management box with this kit.