Trust me you can build a 2JZ better and cheaper then a high millage 7M the parts for 7M are becoming extinct soon the JZ will be next they are into there 8yr range since the last 2JZ-GTE was made.
You can find aristo 2jz motor auto trans sets for 1400-1600.
This will add a factory base horspower increase of 100hp + super reliability even if you can find a 7m jdm engine with low miles it might need head gasket rework too.
So aristo 2JZ auto ecu combo for 1400 + custom 1 piece aluminum drive shaft 400 + JZA70 motor mounts $60 on ebay.
Good luck building any 7M to jz specs for the same amount of money.
Oh yea if you have R154 factor in 300 for bellhousing.
As far as upgrading the engine to a single no problem 550s are good to about 500hp so just tweak your boost up to fuel cut.
Chinaman manifold + cheap hx35 or budget journal bearing turbo with chinaman downpipe is about $500
You need the AFC really only when hitting fuel cut going above that level of boost and anytime you change the injectors.
But 500-600whp no problem with the 2JZ with out even removing a valve cover.
You can find aristo 2jz motor auto trans sets for 1400-1600.
This will add a factory base horspower increase of 100hp + super reliability even if you can find a 7m jdm engine with low miles it might need head gasket rework too.
So aristo 2JZ auto ecu combo for 1400 + custom 1 piece aluminum drive shaft 400 + JZA70 motor mounts $60 on ebay.
Good luck building any 7M to jz specs for the same amount of money.
Oh yea if you have R154 factor in 300 for bellhousing.
As far as upgrading the engine to a single no problem 550s are good to about 500hp so just tweak your boost up to fuel cut.
Chinaman manifold + cheap hx35 or budget journal bearing turbo with chinaman downpipe is about $500
You need the AFC really only when hitting fuel cut going above that level of boost and anytime you change the injectors.
But 500-600whp no problem with the 2JZ with out even removing a valve cover.