rambo3010
New member
i want to know if i can build a 79 lower end into a fast drag sled motor.can i put the 77 upper end on.i know the bolt holes are smaller from reading on here.im reading every thing i can about srx's. i just bought a 79 & had a 76 with a 79 motor witch made a fun trail sled lots of looks.any way i want to finde parts & build a drag motor.i have one running motor & 2 more parts motors to start with, both 79s.is there a sutch thing as a 500 big bore for 79 srx.