XR400
We would buy the xr400 to modify the trx 400 for the national circut. We would use the flywheel and still cut the **** out of it, and the Kickstart, no battery or starter very light. We would install a 440 kit with a 2mm stroker crank and cut the 440 piston to fit instead of using the stroker piston. We would get over 14-1 compression and a lot less reciprocating weight. c16 fuel. A real 450 eater in 05 we were winning most races in open class with an air cooled motor. We would also use some of the trans gears. We also ran a methanol 350R. a monster but had nothing for the TRX/XR 460
![steve%20014[1].jpg](https://www.forabodiesonly.com/mopar/attachments/steve-20014-1-jpg.1715171928/ "steve%20014[1].jpg")
![steve%20015[1].jpg](https://www.forabodiesonly.com/mopar/attachments/steve-20015-1-jpg.1715171929/ "steve%20015[1].jpg")
We would buy the xr400 to modify the trx 400 for the national circut. We would use the flywheel and still cut the **** out of it, and the Kickstart, no battery or starter very light. We would install a 440 kit with a 2mm stroker crank and cut the 440 piston to fit instead of using the stroker piston. We would get over 14-1 compression and a lot less reciprocating weight. c16 fuel. A real 450 eater in 05 we were winning most races in open class with an air cooled motor. We would also use some of the trans gears. We also ran a methanol 350R. a monster but had nothing for the TRX/XR 460