solid engine mounts

Discussion in 'Race 400/430/455' started by kirchman64, Mar 3, 2006.

  1. kirchman64

    kirchman64 Member

    Wondering if anyone is using these,I keep tearing the rubber mounts and even welded them solid,but still pulled that apart. thanks
     
  2. Kelly Eber

    Kelly Eber I'd rather be racing

    I made some solid mounts for my car. Just use the standard mount to make a jig and you are in business. It's a real pain to install, but had no problems with them afterward.
     
  3. GS Kubisch

    GS Kubisch THE "CUT-UP" BUICK

    I've never liked the idea of them on a BB Buick....The block is too weak and the more power you make the more it will flex.

    I would(And always have)make a plate or other device from the cylinder head to the frame.
     
  4. kirchman64

    kirchman64 Member

    Have you ever seen a block broken from solid mounts???.I just got to get it through the race season then its going under the knife to get front halfed.
     
  5. GS Kubisch

    GS Kubisch THE "CUT-UP" BUICK

    Actually two..........One was a Turbo V6 Buick the other was a 600-ish HP 455 in my Buddy's 70 Skylark(10.40 car).

    I also spoke w/ Bobb Makley(He's on this forum as well)and he said he actually could watch the Block flex in his Father-in-Law's Racecar just by turning the engine over by hand during maintenance.
     
  6. kirchman64

    kirchman64 Member

    thats alittle scary :eek2: Does hard blocking the block help??
     
  7. Clark Porter

    Clark Porter Team Headless Chicken

    We've used a solid on the left and a stock mount on the right with no problems, but we're not at the power levels of some others here.
     
  8. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    I agree with Gary K,If you have a lot of power you'll crack #2 main web with a solid mount,thats where the mount is located.Use a rubber mount and fashion a plate to the drivers head down to the frame,I've had this for years without a problem with 700hp.Known others who used the solid and had problems. I don't believe hardblock will help,the block is in tension at this location.
    gary
     
  9. Landshark1969

    Landshark1969 1969 GS convertible

    I have solid leg mounts in my boat only about 450 HP do you think I should switch to plate in the boat it takes alot of abuse in the water boncing of waves and stuff.
     

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  10. Buicks4Speed

    Buicks4Speed Advanced Member

    Solid

    I run solids at the stock location. BUT I also run a "mid-plate" that is two ears which bolts to the backside of the transmission flange over the back of the case. They remove without pulling the motor. It keeps the stress of the motor rocking back on the launch off the motor mounts as well as shares the twisting flex. Worked great for me so far at 900+ HP. :TU:
     
  11. kirchman64

    kirchman64 Member

    Dose anyone have pictures of plates used mounting from head to frame? The motor I used last year had 500hp,Im building new motor this year that will probably be 650-700hp and i would burst into tears if i broke it.Next year the car is going in for front half so then it will get mid-plate and engine plate.
     
  12. Horsman

    Horsman Well-Known Member

    Anyone using some kind of torque strap with rubber mounts?
    If so, is it working out good for you?
    Any pictures?

    Thanks :3gears:
     
  13. GS Kubisch

    GS Kubisch THE "CUT-UP" BUICK

    Here is what I was using.......
     

    Attached Files:

  14. kirchman64

    kirchman64 Member

    Thanks gary!
     
  15. Landshark1969

    Landshark1969 1969 GS convertible

    What thicknest is the aluminum and do they interfere with the alternator?
     
  16. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    I have the same style,but I install them just on the drivers side,front and back of the block,then the alt works OK
    gary
     
  17. GS Kubisch

    GS Kubisch THE "CUT-UP" BUICK

    I used .250(1/4") and space lower pulley accordingly :TU:
     
  18. Staged70Lark

    Staged70Lark Well-Known Member

    Gary K.,

    Those front engine mounts could be replaced with titanium or if nothing else they need a few holes drilled in them to lighten them up!!! :3gears:


    Later
     
  19. GBUICK

    GBUICK ALL THROTTLE

    Man, another area my car is different.
    I've used a stock mount that has been welded to be a solid mount for years on the drivers side without any problems. Stock rubber mount on pass side.
    I have it on my list to make a "'tiedown" at the head.
     
  20. gymracer01

    gymracer01 Well-Known Member

    Mounts!

    I have been concerned about this since I run solid mounts in the stock location. I'm not sure how much hp I make but it has run 10.30's and 1.38 short times. Ran same engine for 5 years without any problem. I do have a home made turn-buckle with heim joints to the left head and the frame. Going to aluminum heads and more horsepower this year may require a different setup.
    Jim N.
     

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