Think that XT used a 1.8 liter engine. The XT6 engine was the 6 cylinder version on that engine, the eg27 (2.7 liter).

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> On Feb 28, 2014, at 6:17 PM, Paul van Dyck <plvandyck@MSN.COM> wrote:
> 
> I bought a new 1987 1/2 Subaru XT with-if my memory serves me correctly- a
> 1.6l(non turbo). Great torque and achieved 126mph on a long downhill out to
> Vegas from LA. Rear lifters started tapping around 150k miles. I asked my
> now out of town Suby guru mechanic for ideas. He suggested lightly enlarging
> the overhead oil feed line orifices of those specific lifters, for
> additional flow. Each lifter had its own orifice. His solution worked after
> some very minor Dremel work. Loved that car and loved that little boxer, but
> needed four doors for family safety while my '90 Syncro was putting us
> through the mechanical wringer. Has anyone tried the Subaru 1.9 turbo for a
> conversion?
> 
> Regards
> Paul