Bummer.

Your car doesn't have the brain to support the engine management on the 420, so you would have to use your injection, maybe the whole intake manifold.

I have a 3.8 single chain short block that "ran when pulled" that you can have if you come and get it or find someone to haul it. You could use the pieces from your engine to convert it to a dual chain. But this would be a lot of work. Email me for details if interested.

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Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe