SOHC to DOHC parts swap?

[Dr.-B]

Is it possible to make an 89 s13 with a SOHC a DOHC without an engine swap? Like just replacing the parts with DOHC parts... anyone know?

I found an 89 that has a blown head gasket and I am thinking of buying it cause they only want $450 for the car and besides 2 240sx's are better than one :pface .

I search but could find nothing posted and if I missed something could you point me in the direction I need to go!

[JNM240]

No, the heads are different. You would have to swap the whole engine, wiring harness, ECU, power steering lines, possibly the AC. The engine blocks themselves have the same dimensions, but i understand the DOHC has different water jackets. The heads will not interchange.

[1dollar240]

Well while youre at it, you might as well throw a vtech head on there and get some extra hp. there is a thread about it around here somewhere

ahh here it is- http://www.nissaninfiniticlub....=7434

[TrueSlide]

I have heard you can swap in the engine without changine the harness, but no one really confirms anything about this swap. Its just like asking about the wiring in a CA you get the same response its like the SR but with some changes. Well then its not like the SR is it then? I would like to know exactly what has to be done to swap from SOHC to DOHC?? Can someone answer the question?!?!?!?!

[JNM240]

All i can say is that IF there is anything that needs to be cut and rewired to make the DOHC work on the SOHC ECU, it would be a LOT LOT easier to just get the DOHC ECU and wiring harness. I know for a FACT that the SOHC tachometer uses a 12V signal, while the DOHC tach uses a 16V signal. That is a big enough difference for me to just add the ECU and wiring harness to the swap. As for performance, why not build the SOHC?

[Dr.-B]

http://www.nissaninfiniticlub....40742

well thanks for suppling me/(anyone who read this) with misinformation and also for flaming me