455 into 75-79 skylark

Discussion in 'Wet behind the ears??' started by buickjim, Nov 9, 2002.

  1. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    Carl, I post this info to let you all know that the car can be made to handle the task. Sounds like you have a nice enough vehicle expecially on pump gas. I plan to be there one of these days.
     
  2. cacmanjr

    cacmanjr Well-Known Member

    'Preciate the post Phil. I'm sure the cars are up to the task. Mine came in at a little over 3400 pounds so I know it takes the horsepower to move them. I hope I can find some 'glass parts (hood and bumper) in the future. Good luck with your project and lemme know if I can offer up any info you may need.:Comp:
     
  3. cacmanjr

    cacmanjr Well-Known Member

    Best Time!

    MiniSkirt ran 11.16 at 119 mph this weekend. Closing in on the 10's on pump gas!
     
  4. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    race track pic. My buddy here put down a 10.51 at 121mph (yup the numbers don't match) he got out of the gas at the starting line, Got back in it on the top end he let off do to an oil pan leak onto the headers about 15 ft out. is now repaired and ready for a low 10sec run.
     

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    Last edited: Sep 4, 2003
  5. cacmanjr

    cacmanjr Well-Known Member

    Great burnout!! I ran 11.28, 11.15 and 11.17 before getting rained out last weekend.
     
  6. cacmanjr

    cacmanjr Well-Known Member

    Got the carb to open all of the way this weekend.........11.08 at 120mph.........10's are getting closer!
     
  7. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    carl sounds good!
     
  8. cacmanjr

    cacmanjr Well-Known Member

    11.143 @ 119+ was the best today in bad air at a different track. Took 3 jet changes to get there. BTW got to meet J. Weise, G Sweeny, Gary Paine and his son. All great BPG members.
     
  9. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    congrates carl!
     
  10. bigjon69420

    bigjon69420 New Member

    does anyone have any pic of the swap?? im planning on putting a 455 out of a 70 electra in my 77 omega. as far as the motor mounts i go the ones fron the electra. do i need to drill two new holes in engine cradel?? i have 800 total into this so far. i'm new to classic cars?? i'm on a tight budget-- anyone know where i can get cheap headers??? with the t400 tranny will i need to get a different driveshaft car has t350 in it now??
    thanks in advance
    jon
     
  11. bigjon69420

    bigjon69420 New Member

    any body know what i can hope my quater time will be with a stock 455 electra 455 in a omega with the t400 tranny??
    jon
     
  12. TheSilverBuick

    TheSilverBuick In the Middle of No Where


    This is an old thread, you should probably start your own. But here it goes for me:

    The electra engine frame mounts might be too tall, I got a set for a '70 A-body, I had to oblong a hole or two, but all the holes were there.
    [​IMG]

    [​IMG]

    I used Cast Iron manifolds with no clearance issues and I now have T/A shorty headers on it with the only clearance issue being and had to tap a ~1/8th inch divot into the #7 header pipe because when the engine torqued up it'd touch the steering shaft joint. The divot is hardly visible, but it made a big difference. My car has the A/C box in place as well. All spark plugs are easier to get to than on the OE 231 v6.

    Headers will almost never be cheap. I'm pretty sure you'll have to get the drive shaft made. The ends changed out at at minimum anyways going from a TH350 Yoke to a TH400 yoke. You may have to make or modify the transmission cross member, as a TH400 I don't believe ever came in an X-body. You may be able to find one from an f-body though.... I changed my trans to an aftermarket one, so I have no idea how close I am to the factory line up (though my Z-bar lines up pretty good with the stock frame bracket....).
     

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