The only engine that will mate to your tranny is the 2.6 103 engine...The 3 liter version has the 722.3 tranny, yours is a 722.4...You could go with the 2.6 engine, but it will probably be more costly to change than the car is worth. If an engine swap has to be done, I'd go original and keep it simple.

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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
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