Can you put a DOHC twin turbo from any 3000gt into SOHC 3.0 ltr v6 1997 3000gt?

It is generally not advisable to replace the SOHC engine in a 1997 3000GT with a DOHC twin-turbo engine from another 3000GT model. While it may be technically possible with extensive modifications and fabrication, it is a complex and challenging undertaking that requires significant mechanical expertise.

The SOHC and DOHC engines in the 3000GT have fundamental differences in their design and architecture. The DOHC engine has two camshafts per cylinder bank, while the SOHC engine has one camshaft per cylinder bank. This difference affects the valvetrain, timing belt/chain setup, and cylinder head configuration.

Additionally, the twin-turbo setup of the DOHC engine involves modifications to the exhaust system, intake system, and engine management system. These modifications are not straightforward and may require custom fabrication and tuning.

Considering these factors, it is generally recommended to seek professional assistance from experienced mechanics or engine builders if you are considering such a significant engine swap. They can evaluate the feasibility of the project and provide guidance to ensure a successful and reliable conversion.