Yes, it is only the pistons that are different to provide a different compression ratio (higher in the NA). Be careful when bolting turbos to an NA motor.
same place as turbo on passenger side of motor low down on side of engine block
yes they are both vg30s the same block. The difference is the turbos.
The replacement coil part#s are the same, from the store... so yes.
Yes the engines are exactly the same if they are of the same year
no different it's all the same..
I think it has 222hp for the non turbo.
non-turbo: 160 turbo: 185
VG30DETT is Twin Turbo VG30DE Non turbo
Yes
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put on a turbo
my 1993 twin turbo 300zx originally retailed for 55k brand new. my 1991 non turbo retailed for 38k