Head gasket recommendation
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Head gasket recommendation

  1. #1
    The voice of reason Dragboatdad's Avatar
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    Default Head gasket recommendation

    We are assembling a new 540 blown efi engine and need help with head gasket selection. We will be putting it in a 21' Raysoncraft. We plan to keep it mild and on pump gas. It will be a river cruiser.
    Here's the basics;
    Dart block with extra head bolt option, not "o ringed". Brodix heads. 1271. Efi.
    Hope that covers it. Any suggestions will be appreciated. Thanks

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    LP-25.com Infomaniac's Avatar
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    Felpro MLS.
    If For Some Reason I Do Something Worthy Of Recognition. God Provided The Ability And Deserves The Credit.


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    Some guy obnoxious001's Avatar
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    Quote Originally Posted by Infomaniac View Post
    Felpro MLS.
    I agree that those are probably the best choices, but also have had fine results with the older style Felpro on mild forced induction applications.

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    LP-25.com Infomaniac's Avatar
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    Yes the good quality Felpro Marine head gasket would be acceptable.
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    Distinguished Member David 519's Avatar
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    Personally, after recently dealing with the water pump pushing water past an otherwise well sealed engine, I won't waste my time on anything less than a MLS style gasket in a performance application. For the motors I"ve done recently, Cometic has been a better match than Fel-Pro but both are great. MLS gaskets are bit more money up front, but can be reused a few times making it a push. Follow the installation procedures exactly and never worry about head gasket again....
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    Senior Member EVILFORCE's Avatar
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    O-Ring that puppy and use copper.

  9. #7
    Senior Member zacho!'s Avatar
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    Quote Originally Posted by EVILFORCE View Post
    O-Ring that puppy and use copper.
    Im definitely not an engine builder, let alone a pro - but I just seen my buddy bring in copper O-ring gaskets that were a little off like .020 or .030. I guess my point is double check everything when Your gonna try and make a bunch of power...

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    Senior Member jimclauss's Avatar
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    Quote Originally Posted by EVILFORCE View Post
    O-Ring that puppy and use copper.
    I'm with you, and stud it. End of story.
    Last edited by jimclauss; 03-08-2013 at 07:22 PM.

  11. #9
    Senior Member jimclauss's Avatar
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    Quote Originally Posted by zacho! View Post
    Im definitely not an engine builder, let alone a pro - but I just seen my buddy bring in copper O-ring gaskets that were a little off like .020 or .030. I guess my point is double check everything when Your gonna try and make a bunch of power...
    thats like impossible. When they stamp out these gaskets the copper sleet is within .0005 you can order almost any size you want , .030 .042 , 062, etc. ( .020 or .030 little off maybe he forgot to put the gasket on the block? )
    Last edited by jimclauss; 03-08-2013 at 07:30 PM.

  12. #10
    Senior Member EVILFORCE's Avatar
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    Quote Originally Posted by EVILFORCE View Post
    O-Ring that puppy and use copper.
    Quote Originally Posted by jimclauss View Post
    I'm with you, and stud it. End of story.
    Well lets get it all out there. O-Ring. Copper. Studs and add the 2 bolts GM left out. Now you are good to go.

  13. #11
    Senior Member jimclauss's Avatar
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    Quote Originally Posted by EVILFORCE View Post
    Well lets get it all out there. O-Ring. Copper. Studs and add the 2 bolts GM left out. Now you are good to go.
    That's what I'm talking about.

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    gn7
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    GEEZ, its a pump gas recreation boat and you guys have him welding the heads on. We ran Felpro Blue Performance gaskets with 10.5 to 1 and 10 lbs of boost with NO added studs and had zero problems. I am sure they are more than up to the task of a pump gas lake boat, and much failsafe installation than MLS gaskets. Less than ideal surface, not sealed properly and they leak like broken dam.


    Cooper, o rings, and studs. Didn't know the guy was building a top fueler.



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  15. #13
    Distinguished Member David 519's Avatar
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    Quote Originally Posted by EVILFORCE View Post
    O-Ring that puppy and use copper.
    Man, I had fun in the 80s too, just not interested in going back there!!! O-Ring/copper is a great choice for a solid block, big HP alcohol deal, but why spend several hundred in machine work and still get to fight sealing up the water passages in a lake or even bracket race application. Been there, done that and got the t-shirt. Seen the MLS stuff handle 45 lbs boost in a turbo drag car, they're more than good enough for most performance stuff around here. The OP has a mild blown gas cruiser, probably get by with Fel-Pro blues.... Like they say though, YMMV!!
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

  16. #14
    Senior Member EVILFORCE's Avatar
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    Quote Originally Posted by gn7 View Post
    GEEZ, its a pump gas recreation boat and you guys have him welding the heads on. We ran Felpro Blue Performance gaskets with 10.5 to 1 and 10 lbs of boost with NO added studs and had zero problems. I am sure they are more than up to the task of a pump gas lake boat, and much failsafe installation than MLS gaskets. Less than ideal surface, not sealed properly and they leak like broken dam.


    Cooper, o rings, and studs. Didn't know the guy was building a top fueler.
    That is what I use too Uncle Bob. Fel-Pro blues.

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