i have just started to rebuild a 1974 1200 ute.

I looked into all the engine options

SR20DET, FJ20DET, 12a, 13b, and 13BT, and the CA18DET

Basically the "easiest to fit" when it comes to engineering is the CA18DET.

the rotors are classified as being too big and so are are the 2lt. i was advised by 4 different engineers that the CA18DET was the best "legal " engine

I have opted for the CA18DET and after some research this seems to me to be the best option.

At the end of the day I wanted a 2lt turbo, I am rebuilding the engine with 84mm forged pistons therefore increasing the capacity to roughly 1950cc well thats close enough to a 2lt for me and I will have less engineering issues.

So its easier that way.

looking at the actual conversion I beileve the CA18DET is easier due to its smaller size, there is still alot of modification that needs to be done (the tunnel mainly) but there are alot of parts and information avaliable to help with the conversion just a matter of taking the time to look and read up.

I also flicked through the 1/4mile log and had a look at the engines and times. It seems a lightly modded CA18DET wil push a ute to a low 13, thats quick enough for the street, I am building towards a mid 12 and that seems more than manageable out of the CA18DET.

I suggest looking at what you want out of the car and seeing what others have done to achieve the same or similar results and using that as your blueprint.

Sam.