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  1. L

    What spark plugs to buy for 93 5.0 EFI

    I have the same engine and the most widely used highly recommended is the AUTOLITE 764, it will give you the best performance. I have used them for over 20 years on my engine.
  2. L

    Help! Bought a 1993 Four Winns W/ 5.0 OMC Cobra Motor and Drive - Losing power after crusing

    Hello, I was reading thru all these threads and i want to offer some insights. I have a 1994 Larson that has the same 5.8 EFI OMC ford engine. Most all the EFI parts are no longer available, such as sensors and different electrical parts, however, apart from the distributor and the alternator...
  3. L

    Looking for replacement heat exchanger

    Glad you were able to get it fixed. It should be fine. Sure beats the price of a new one. Thank you for the tips.
  4. L

    Looking for replacement heat exchanger

    That heat exchanger looks like the identical one that is in my boat. I bought it from a company called san juan engineering marine cooling systems. They were aquired by Orca marine. I believe they have all the patterns for the san juan engineering stuff. Try to contact them. They may be able to...
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