tommays said:The I-6 is long gone there here and there but not as easy to get things for as the 4 cylinder motor
If you go with a bigger motor you will need to change the drive ratio to use the power correctly
If your changeing the motor TYPE there are allways a lot of problems with the small bits and pieces that will no longer be in the correct place unless you find a compleat used package with ALL the parts
And you will have problems with the motor mounts being in the wrong place
Tommays