Why bother? You'd be doing a whole transplant into your 20 series Soarer but doubling your engine cost and for dubious benefit. Might have made some economic sense if you already had all the go fast gear on a 1JZ and wanted to get out to 3 litres after you shat the bottom end on your 1JZ.
Just get one or the other and be done with it. Both have plenty of potential.
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