Putting in new motor

Discussion in 'General RVing' started by 13Bravo, Jan 14, 2008.

  1. 13Bravo

    13Bravo New Member

    I am installing a new motor (chevy 454) The motor is being built to the specifications I request. I would like some guidance about the type of cam and intake manifold I can use. I want it to be better than stock. Should I be looking for alot of torque or a lot of horsepower? I live in it 60-70% of the time and it stays parked about 3-5 months at a time, but when I go to my next project it can be anywhere from Miami(currently) to El Paso(in March) then to New York. I want a good strong engine to pull 33 ft. with confidence.
    Another question I have is about my generator; (onan 6.5) It starts and runs, but a little rough. When I turn on the A/C it boggs down and stumbles for a few minutes (pretty rough) then eventually stalls. I had it serviced about 2 months ago and it ran great until a couple of days ago. I put in new plugs and checked the fuel filter. Is there anything else I should check before I take it to someone.

    Thank you all in advance
     
  2. Grandview Trailer Sa

    Grandview Trailer Sa Senior Member

    Re: Putting in new motor

    As far as the motor, you need torque to tow with. I rebuilt a 1974, GM 402 big block police interceptor motor and installed it in my 1979 1/2 ton GMC. The ONLY thing that was not stock was the Torque Cam. That thing had so much power, I did not hook up the passing gear cable to the transmission. Every time the 4 barrel would kick in, your neck would snap back. Blew away all the hot shot Fords that were around then. Wish I still had that truck.......

    On the generator, sounds like bad gas, or carburetor problems.
     
  3. 13Bravo

    13Bravo New Member

    Re: Putting in new motor

    Any recomendations on a good carb for RV's? Should I just rebuild the stock one?
     
  4. Grandview Trailer Sa

    Grandview Trailer Sa Senior Member

    Re: Putting in new motor

    What year are you talking about?
     
  5. 13Bravo

    13Bravo New Member

    Re: Putting in new motor

    its an 85 holday rambler imperial 33. I know its an old rv but we love it. It is a long and expensive story but we are committed to it.
     
  6. 13Bravo

    13Bravo New Member

    Re: Putting in new motor

    Do you happen to know what kind of tranny I have? I am going to redo the tranny while I am into the motor.
     
  7. Grandview Trailer Sa

    Grandview Trailer Sa Senior Member

    Re: Putting in new motor

    Your carb. is probably a Rochester. They were pretty good themselves, but Holley made a good one also. I don't remember what transmission they used.
     

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