Performance Inlines

Discussion in 'Technical' started by Kevin Felsman, Mar 6, 2016.

  1. Kevin Felsman

    Kevin Felsman Member

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    Just want to put this out there. Has anyone had experience (good or bad) turning there .250 single barrel intake into a true two barrel? Want some feed back on machining, carburetor adapter set up, linkage, head internals (valves, rockers, lifters, cams), exaush setups, hood clearance.
    Thanks in advance. Hope to get some good ideas. 20160302_111847.jpg 20160302_111944.jpg 20151029_165200.jpg
     
  2. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    What is your goal?
     
  3. 71Mavrk

    71Mavrk Member

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    Kevin,
    Years ago, I put a Weber DGAV on a 250 with dual outlet headers. It made an improvement but for the time and money, it would have been better just to have put a 302 in. The six cylinder is not an efficient engine without putting a lot of money into it.

    As Craig asked, what are your goals?

    There have been others that have posted the same question. Several of them decided that the 302 was a better option.

    Micah
     
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  4. stumanchu

    stumanchu Stuart

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    I never owned a 250, but the 300 six has a ton of torque useful from idle to 2500 rpm. It is a great motor up to 45 to 50 mph, after that it is just taking up space. A 302 will dominate a six in every category with the exception of economy and longevity. Unless you really just want to hear that six get feisty........there is an article somewhere about making one feisty.
     
  5. dan gregory

    dan gregory Member

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    If you really want a 6,build a 240,the little brother of the 300.The 300 is to tall to fit under a Mav hood but I think you could squeeze a 240 in there.
     
  6. Kevin Felsman

    Kevin Felsman Member

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    The car is a four door and I think the six is more appropriate. If I had a coupe I wouldn't think twice about a 302. I want a nice gurgle a some power. The DGAV was it the progressive? And did you still have the single inlet on the intake?
     
  7. aussie maverick

    aussie maverick Member

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    They produced a '2v' head for the 250 in Australia. Which had a bolt on intake. It was common to see triple webers on them in the day as well. It made for a pretty quick '6' back in the day
     
  8. Kevin Felsman

    Kevin Felsman Member

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    The car is a four door and I think the six is more appropriate. If I had a coupe, I wouldn't think twice about a 302. I want a nice gurgle with some power and a nice looking engine compartment.
     
  9. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    "Some" power is going to cost you a lot of money. One can get a nice gurgle and make the engine look nice pretty cheap. A turbo muffler or glass pack will make more noise. I personally don't care for the noise. :D
     
  10. gregmaverick

    gregmaverick Member

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    Sixes are hot!
     

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  11. Crazy Larry

    Crazy Larry Member

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    What does the number of doors have to do with it?
    There's no such thing as a Maverick "coupe". They're all sedans. 2-door and 4-door.
     
  12. Crazy Larry

    Crazy Larry Member

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    Nice radiator. What kind is it?
     
  13. gregmaverick

    gregmaverick Member

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    Superior (Used to be made in USA - now made in China)
     

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