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Diesel to gas

Discussion in 'Chevy Trucks' started by K20-85-8600GVWRod, Dec 22, 2002.

  1. K20-85-8600GVWRod

    K20-85-8600GVWRod Junior Member
    Messages: 3

    I have read brief statments on different Chevy boards about taking a diesel block and converting it to a gas engine. I have 50K miles on a GM crate engine , but I am considering restoring my truck ( original owner) and want more power. Having a HD emissions truck there are no cats, dual exhaust from the factory, 410 rears and a TH400 tranny. Thanks for your imput , Rod
     
  2. plowking35

    plowking35 2000 Club Member
    from SE CT
    Messages: 2,923

    I dont understand what your question is. Do you currently have a diesel crate engine in the truck? Is your crate engine a gasser, and you are thinking that a diesel engine block converted to gas, will make you more hp?
    If you have a diesel now, add a turbo and free exhaust that will gain you some hp.
    If not sell the diesel and find a 454 gas. The diesels are under 400 ci, and I dont see a way to convert it to gas fuel delivery. The heads do not have any area for spark plugs, plus the intakes are suited for a carb.
    You can get good money for a late model 6.5 diesel engine, that will offset the cost of a BB.
    Dino
     
  3. K20-85-8600GVWRod

    K20-85-8600GVWRod Junior Member
    Messages: 3

    Wow, thought i was the only one here a couple days before Xmas. I am running the standard GM 350 right now. I think 200hp with about 375 ft/lbs torgue. My understanding is that you take an old 350 ci olds diesel, keep the block, crank and pistons. Add gas heads, intake and carb and whatever else. I am not a mechanic. The diesel block gives you a bullet proof motor that can be built into a really bad motor. thanks, rod
     
  4. JohnnyU

    JohnnyU 2000 Club Member
    Messages: 2,040

    people use that block because there is more material, it can be bored much farther than a gasser block, its not worth doing to the truck, just get a zz4 crate if you want power. there are better things to spend you money on than doing that.

    Click for more horsepower suggestions :)
     
  5. Pelican

    Pelican 2000 Club Member
    Messages: 2,075

    K20, Welcome to Plowsite!:drinkup:

    I agree with Dino, the cheapest way to get more power is more cubic inches. If you're going to swap motors, why not throw in a Rat? You'll never get the torque from the mouse that is standard equipment with the big block without spending gobs of money, and then you get a reliability factor if you get too radical.
     
  6. K20-85-8600GVWRod

    K20-85-8600GVWRod Junior Member
    Messages: 3

    Thanks everyone, more to think about. Rod
     
  7. plowking35

    plowking35 2000 Club Member
    from SE CT
    Messages: 2,923

    The swap would be furthe complicated by the fact that the diesel you are looking at is an olds, and has a different block to bellhousing bolt pattern than a Chevy/GMC.
    Either build that 350, which any slightly modified 350 should more than enough grunt for a truck, or get a BB. I have a stock BB in my 89 K-3500, and that has so much low end compared to a SB.
    Dino