Are the engine mounting pointsfor the 03+ RR's all the same? Are there any block changes throughout the years? Head changes?? If not, what exactly is different between the years? I'm just wondering if an 03 will fit in an 06 or any combination of years. Stuff like accesories and the ITB differences don't matter as i'm using my own custom setup ecu, intake stuff, sprockets, etc...

Also are the transmissions from different years interchangable??

 

i'm mainly talking about 03-06 engines. I'm fairly possitive there are a lot of changes in the 07+ engines

 

anyone??