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Head Gasket 455

Discussion in 'Street/strip 400/430/455' started by MNBelv57, Jan 5, 2021.

  1. MNBelv57

    MNBelv57 Well-Known Member

    Hello all, hope everyone had a nice New Years. Hoping someone can help with a head gasket question. I had to remove the head on my 1974 Gran Sport 455 and unfortunately I threw away the old gasket. The new one is a Fel-Pro # 8494 PT. When I test fitted the gasket it seemed that some holes were missing for the water passages' I looked on the head to see if those passages were there and they were. Also in some areas where there is a hole for the water there is a very small hole for a large passage on the block. I also noticed on the block some passages had been filled with some type of what looks like a tan epoxy. I don't know if this engine was ever rebuilt, but it doesn't look like it. Any advice is greatly appreciated. Mario.
     
    MNBelv57, Jan 5, 2021
    #1
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    LARRY70GS, Jan 5, 2021
    #2
    J.Staged likes this.
  3. MNBelv57

    MNBelv57 Well-Known Member

    Thank you Larry. You helped me again. What is the purpose of that tan colored material that is blocking some ports in the block and head too ? It seems to be some type of putty, almost like wood putty. And the part that really concerns me is that the thin long rectangular port on the far left side of the block (it is the same as the one on the right which has antifreeze in it) is filled in with this material. The head gasket has an opening for these holes on both sides, I assume that is so the gasket can be interchanged for either side. But is filling one of these holes and not the other something they do from the factory ?
     
    MNBelv57, Jan 5, 2021
    #3
  4. hugger

    hugger Well-Known Member

    It's stained,t..is nothing in there because there is no hole there

    Sand with sand paper and it will be iron
     
    hugger, Jan 5, 2021
    #4
  5. MNBelv57

    MNBelv57 Well-Known Member

    Hugger, I sanded to the metal already. The metal edges are the same as on the opposite side but that side is open with coolant in it.
     
    MNBelv57, Jan 5, 2021
    #5
  6. MNBelv57

    MNBelv57 Well-Known Member

    Sorry Hugger, you were right. A little more sanding did the trick. No hole. The gasket with extra holes threw me off. Thanks.
     
    MNBelv57, Jan 6, 2021
    #6

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