Fel Pro 1037 head gasket
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Fel Pro 1037 head gasket

  1. #1
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    Default Fel Pro 1037 head gasket

    I have a 1967 427 + .30 block and heads. Fel pro recommended the 1037 head gasket because of it being in a boat. When I got the gaskets, I think that I understand that I need to drill the 3 small holes in the block. Is my thinking straight or do I need to get the 1017 gasket. Thanks.

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  3. #2
    gn7
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    Quote Originally Posted by MR. KILOWATT View Post
    I have a 1967 427 + .30 block and heads. Fel pro recommended the 1037 head gasket because of it being in a boat. When I got the gaskets, I think that I understand that I need to drill the 3 small holes in the block. Is my thinking straight or do I need to get the 1017 gasket. Thanks.
    You only need to add 2 holes(per side) if they are not already there. Early BBC only had one hole on each side between cylinders on the exhaust side of the deck. You have to drill these holes, but you should.

    This link explains it on page 2

    LINK: Felpro


    EDIT: If you do not add the holes along the bottom of the deck, you must add the opening to the end of each gasket to match the holes at the end of the deck. If you do add the lower deck holes, then you can run the gaskets as is. One or the other.
    The 1037 was made to be used on both MK and GEN series engines. The GEN series blocks require the one hole in the end to be closed off. Thats fine on a MK block so long as the block has the lower 3 holes.
    The ONLY difference in water passages between the 1017 and the 1037 is the end holes and the Printoseal pattern around the holes.
    Fix the block(if it doesn't have the 3 lower holes) or fix the gasket.
    Don't try to drill the gasket, you ruin it. It needs to be punched.





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    Last edited by gn7; 12-16-2012 at 06:02 PM.

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    Default http://www.performanceboats.com/dyno/112236-fel-pro-1037-head-gasket.html

    Thank you for explaining Bob. Do the 3 holes at the bottom actually cool better or was it simply a design change?

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    gn7
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    Quote Originally Posted by MR. KILOWATT View Post
    Thank you for explaining Bob. Do the 3 holes at the bottom actually cool better or was it simply a design change?
    It cools the exhaust side better. Thats why the factory went to it. The early path was most of the water went to the back of the block, up thru the end port and back to the front thru the head.
    The later path it is a more even flow from the outer side of the block and up thru the head on a more evenly distributed fashion.
    Not real critical in a lake cooled boat engine, but you need to make one change or the other, to the block or gasket, or change to a 1017 gasket.

    I'd drill the hole in the block. IF THEY'RE NOT THERE



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    X2 gn7

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