I didn't find that, but I found something better, the Super Duty 4 and the name and address of the current holders of the manufacturing rights to it, Kansas Racing Products, they offer a completely custom SD4, from different bellhousing and oil pan options to a multitude of intake choices and custom stroke and bore selections, up to 203 cubic inchs, but I'm sticking with the 4.125"x3.500" option.
The Fiero will just be the test bed for the engine, it has a greater purpose, in another, lighter, mid-engine, RWD car.
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1985 Pontiac Fiero 2M4