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Originally Posted by 94turbo
Hey guys my name is Jessie and Im thinking about getting a 94 TT supra but the engine is blown do you think i should get it and be able to put a 1998 tt engine in it?
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Yes, that's an acceptable solution. In fact, if the 'blown' '94 engine only has piston/ring/cylinder damage, you don't need a whole '98 longblock with turbos...just get a 'shortblock' from Toyota ($2500 or less) and bolt your '94 head onto it.
You can find out exactly what's wrong with the blown engine by doing a leakdown test on it.
If you ask a shop experienced with the Mkiv Supra Turbo to do this swap for you, they'll probably charge you somewhere between 30 and 40 hours of labor. (Probably about $3K in labor) ...and yes, it really does take that many hours of hard work to do this swap properly.
The only difference between the two shortblocks is very minor: the size & thread pattern of the hole in the block for the oil pressure sensor (i.e. the '98 oil pressure sensor is different), and Toyota sells an adapter to address this problem.
Post back if/when you need some advice