Change Up!!!

So I've had the RB26DETT's for a couple of weeks now. One is trash, but came with a good head. The other one's head and block are done for. Yesterday Nino dropped off a nice RB25DET with full harness and sensors. Only problem is its a Series 1, but thats really no problem at all. The difference between the two shortly is coil on plug, cam shaft/crank angle sensor, harness. More on this in a minute...