RB25 Crank, Rods, Rod bearings, 82mm pistons from Arias, heard they were puttin it into production.. Plus sleeve it and blah blah blah to keep ur motor safe. If u gonna do this tho... major head work will be needed. the intake and exhaust ports are just to tiny..Komatsu X wrote:hey i just picked up a rb25det crank and rods for one of my rb20det engine ..i wanted to know if thats all i need to make a rb23det?