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Hot Rods Head Gasket Question

Discussion in 'The Hokey Ass Message Board' started by blackrat40, May 30, 2019.

  1. blackrat40
    Joined: Apr 19, 2006
    Posts: 1,167


    30 years ago I worked in an engine building shop. When we put the heads on engines we
    always sprayed the gaskets with metallic silver Krylon paint. Is that the way everyone does
    it nowadays? I'm getting ready to put the heads on my 324 Olds build this weekend.
    Deuces likes this.
  2. olscrounger
    Joined: Feb 23, 2008
    Posts: 3,983


    I was taught the same.
  3. lippy
    Joined: Sep 27, 2006
    Posts: 4,994

    from Ks

    Me too. Or you could use spray coppercoat I guess also. Lippy
    Deuces likes this.
  4. I was taught the same.

    Me too Mick...
    Deuces likes this.

  5. 19Fordy
    Joined: May 17, 2003
    Posts: 6,928


    tractorguy likes this.
  6. Spray copper coat has always worked well, but I might be inclined to follow Felpro's (or whoever's) instructions. Gasket and sealing technology has come a long way over the years. While this may be due mostly to newer technology in today's engines, some newer materials and procedures may well translate to the older engines we are working with.
    blackrat40 and tractorguy like this.
  7. Terrible80
    Joined: Oct 1, 2010
    Posts: 778


    My old man would spray paint used head gaskets, but he went thru the depression on a farm. Cash money was slim and none.

    Sent from my LG-TP450 using The H.A.M.B. mobile app
    Deuces likes this.
  8. sunbeam
    Joined: Oct 22, 2010
    Posts: 4,978


    Just not for iron aluminum combos
  9. squirrel
    Joined: Sep 23, 2004
    Posts: 46,891


    it depends on the gasket. If it's a metal clad gasket, then spray it with some type of sealer/copper coat/aluminum paint. But if it's a composition gasket with something besides metal contacting the block and head, don't add the coating.
    blackrat40 and Truckdoctor Andy like this.
  10. Jack E/NJ
    Joined: Mar 5, 2011
    Posts: 597

    Jack E/NJ
    from NJ

    Grease liberally slathered on all four surfaces. Jack E/NJ
    blackrat40 likes this.

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