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dumb question

  1. #1
    Senior Member slotracer's Avatar
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    Default dumb question

    why are the engine rail blocks at an angle instead of 90* on the rail?
    which way are they suppose to angle?
    slot
    87 eliminator
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  3. #2
    Senior Member H20MOFO's Avatar
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    The motor tilts back slightly, at least mine does. Put the blocks/feet behind the plates, not in front.
    Another Hot Boat refugee

  4. #3
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by slotracer View Post
    why are the engine rail blocks at an angle instead of 90* on the rail?
    which way are they suppose to angle?
    The engine is not parallel to the rail, making the blocks not at 90*, the only way to use 90* blocks would be to angle the rails....On a jet, the rear of the engine is lower than the front, so as to follow the jet pump shaft angle...

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    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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  6. #4
    Sit N' Spin Jetaholic's Avatar
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    Yeah...what these guys said



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  7. #5
    Senior Member slotracer's Avatar
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    so i want the blocks to angle towards the back of the boat correct?
    slot
    87 eliminator
    next boat ??????????????
    new owner of the redneck yacht club
    Stockton, ca.

  8. #6
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by slotracer View Post
    so i want the blocks to angle towards the back of the boat correct?
    I think so , depends on how you look at it, or say it I guess...

    GT
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    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

  9. #7
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    Quote Originally Posted by slotracer View Post
    so i want the blocks to angle towards the back of the boat correct?
    You need to have the correct blocks for the rail "mounting system" used. If the rails are bolted to the stringers at an angle then you most likely need 90* blocks. If the rails are mounted to the stringers perfectly parrallel to the stringers the blocks need to be angled towards the back of the boat. I'm going through the exact same thing on my boat now.
    Last edited by hotrod56cars; 04-09-2009 at 09:03 PM. Reason: typo

  10. #8
    Senior Member slotracer's Avatar
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    rails are install level with the stringers
    slot
    87 eliminator
    next boat ??????????????
    new owner of the redneck yacht club
    Stockton, ca.

  11. #9
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    Quote Originally Posted by slotracer View Post
    rails are install level with the stringers
    Yep angle them towards the back, so the back of the engine is lower than the front.

    The rail kit in mine was angled in relation to the stringers, I'm thinking of changing that though when I get new rails (angle aluminum). I'll need to machine the existing blocks slightly if I make the change.

  12. #10
    Senior Member Brendellajet's Avatar
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    Pat, put the plates on the motor and set the motor on the rails. It should be obvious then. Depends on how the blocks were cut- if they form greater than 90* they will be in front, if they are less than 90* they will go behind the plate
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

  13. #11
    Senior Member Boat 405's Avatar
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    Most angle blocks were made at 4 degrees, similar to the angle berkeley intakes. A few of us have changed things a bit and running the motor parallel to the stringers instead of at an angle. It seems to help with keeping the motor lower in the boat for center of gravity and help level the carbs.
    Boat 405.

  14. #12
    Senior Member slotracer's Avatar
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    Quote Originally Posted by widowmaker View Post
    Most angle blocks were made at 4 degrees, similar to the angle berkeley intakes. A few of us have changed things a bit and running the motor parallel to the stringers instead of at an angle. It seems to help with keeping the motor lower in the boat for center of gravity and help level the carbs.
    this has always been my thinking on setting the engine in a boat. but where can i get some 90 degree blocks?
    slot
    87 eliminator
    next boat ??????????????
    new owner of the redneck yacht club
    Stockton, ca.

  15. #13
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    rex marine on here has some super nice billet ones.

  16. #14
    Senior Member Futs's Avatar
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    Quote Originally Posted by widowmaker View Post
    Most angle blocks were made at 4 degrees, similar to the angle berkeley intakes. A few of us have changed things a bit and running the motor parallel to the stringers instead of at an angle. It seems to help with keeping the motor lower in the boat for center of gravity and help level the carbs.
    Wont that kill the u joints on the drivline if your running a low profile intake?

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