SBC manifold square?
+ Reply to Thread
Results 1 to 5 of 5

Thread:
SBC manifold square?

  1. #1
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default SBC manifold square?

    Back when building my motor i had an issue with my brand new manifold were the sides/ports (not sure what to call that area) were not 90* to each other. Now I make it a point to put a square on any manifold to check it. A buddy of mine just filled his cylinders and manifold full of water when filling the radiator for the first time. I gave him my square and told him to check it, he just called me and said it not even close. I don't know much about SB's, should these manifolds also be square? I figured they would be.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Senior Member wagspe208's Avatar
    Join Date
    Apr 2008
    Location
    waterloo
    Posts
    2,034

    Default

    SBC's are not 90* to each other. The manifold surface is not 45* to the block end rails.
    Wags

  4. #3
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default

    Quote Originally Posted by wagspe208 View Post
    SBC's are not 90* to each other. The manifold surface is not 45* to the block end rails.
    Wags
    that's good to know. He's got something weird going on, when he fills the radiator number 3 and number 6 intake runners are filling with water. I haven't looked at it yet but he thinks it's coming from above the rocket studs on those ports.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Quote Originally Posted by Shaun View Post
    that's good to know. He's got something weird going on, when he fills the radiator number 3 and number 6 intake runners are filling with water. I haven't looked at it yet but he thinks it's coming from above the rocket studs on those ports.
    Right off, did you notice those 2 cylinders are in the same position on the head. If the problem is in the head, and it probably is, it would occur in the same 2 cylinders even after you switched heads side to side.

    don't know if he did any head work on these, or what exactly is causing the leak, but I doubt its the manifold. He is probably right in that it has something to do with the rocker studs. Same place, same problem, both heads.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  7. #5
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default

    Quote Originally Posted by gn7 View Post
    Right off, did you notice those 2 cylinders are in the same position on the head. If the problem is in the head, and it probably is, it would occur in the same 2 cylinders even after you switched heads side to side.

    don't know if he did any head work on these, or what exactly is causing the leak, but I doubt its the manifold. He is probably right in that it has something to do with the rocker studs. Same place, same problem, both heads.
    Yep, that's what i was thinking, same exact spot on both heads. The problem happens with the manifold off too so he know it's not the manifold, he just taped the rear water ports and adds water and watches the port fill up with water. On small blocks do the rocker studs go into the water jacket? Do the rocker studs go into the intake runners?

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95