GTM 1380 Big Bore Kit

GTM Big Bore Kit

Take your 1200-8V (1151cc) to 1380cc with factory parts, pricing is for a right and left cylinder, pistons and rings. This modification DOES REQUIRE crank rebalancing, a service we offer. Complete motor build services available with GTM performance cams and Carrillo connecting rods. Contact us via the tab above for more info.