The 602 in the 86 is a non turbo engine. so i'm going rom a n/a 5 to a n/a 4 cyl.

Performance is not of the greatest concern here. The 84 601 engine with 30K on it for $500 IS.

I just need to know if they will swap straight over.

Thanks,
Stephen

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85 300D 305K miles WVO(105K so far), Mine
82 300SD 235K miles BIO-D, Wifes
96 F250 SC PSD 4X4 285K MILES BIO-D, Ours
89 BRONCO 182K MILES sold
Finally Compression Ignition Only!