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Thread: Aluminum Heads Paint or Not?

  1. #1
    ghittner
    Installing a new set of Aluminum Canfield heads and I would like to leave them raw aluminum. What have you folks experienced when not painted? This boat is salt water and fresh use. Should I paint them or not?

  2. #2
    BrendellaJet
    What heads are they? Keep a close eye on them, mine cracked a water jacket and leaked some water into the exhaust port... Luckily no damage as I caught it pretty quick.
    I would leave them bare. Better yet have them polished.

  3. #3
    RCB19
    No paint.

  4. #4
    victorfb
    is this a closed cooling system boat? salt water can be murder on the heads if it gets in there. as for the exterior, leave them raw is the way i like em.

  5. #5
    ghittner
    Open system cooling, raw water.... Salt away is my middle name now. I think I'll buy stock in it....

  6. #6
    ghittner
    What heads are they? Keep a close eye on them, mine cracked a water jacket and leaked some water into the exhaust port... Luckily no damage as I caught it pretty quick.
    I would leave them bare. Better yet have them polished.
    Canfield 350 cc

  7. #7
    victorfb
    have the water jackets coated. otherwise those heads wont last long at all.

  8. #8
    bajarunner
    have the water jackets coated. otherwise those heads wont last long at all.
    X2. Salt away alone won't save them.

  9. #9
    victorfb
    X2. Salt away alone won't save them.
    i totally agree. save the cash and get a decent set of cast iron heads and work with those. salt water is a killer, trust me. i used to live right on the cliffs of palos verdes/san pedro and even everything turned to shit real quik from the salt air. hell even my guitar strings would rust and my guns? omg they were almost destroyed unless i wiped them every week. once you get salt water running through the engine, its a bear to keep them clean and erosion free. id look into a closed cooling system if it was me.

  10. #10
    BrendellaJet
    Canfield 350 cc
    Me too. Didn't leak on the dyno, first time out though had water spewing out the weep hole in my bassetts. Crack was in #1 exhaust port. Im surprised I didn't break anything. They were pretty good about fixing it, was a "known" problem apparently. Good luck.

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