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Thread: Small block chevy v8 into a 240sx

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  1. #1
    The Chinese Chicken! secondgencamaro's Avatar
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    You can build a mild 350 with 325hp/400 ft.lbs for $1500. That is with a very mild cam and a vacuum secondary carb (We were looking into building a motor for my friends '78 Buick Regal). In such a light car, you'd be stupid fast with 16MPGcity/19MPGhighway with a TH-350 tranny behind it. If it is not DD you could go alot more extreme with the motor. That one we just panned out to be a cheap, torquey motor with good mileage for a daily. Besides, you could always go SBC-TT. JDM is getting wore thin real quick in my mind. It is just the current bandwagon. Do what you want with your money. I personaly think you'd have more fun with the SBC 240. I'd be faster than all these SR20DETT cars running around and it'd be different. Also, I don't think you'd care about weight distribution if you would think about this swap.

    Power to weight ratio > weight distribution

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    WANTS TO GO FAST! 2.0civic's Avatar
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    Quote Originally Posted by wicked76
    You can build a mild 350 with 325hp/400 ft.lbs for $1500. That is with a very mild cam and a vacuum secondary carb (We were looking into building a motor for my friends '78 Buick Regal). In such a light car, you'd be stupid fast with 16MPGcity/19MPGhighway with a TH-350 tranny behind it. If it is not DD you could go alot more extreme with the motor. That one we just panned out to be a cheap, torquey motor with good mileage for a daily. Besides, you could always go SBC-TT. JDM is getting wore thin real quick in my mind. It is just the current bandwagon. Do what you want with your money. I personaly think you'd have more fun with the SBC 240. I'd be faster than all these SR20DETT cars running around and it'd be different. Also, I don't think you'd care about weight distribution if you would think about this swap.

    Power to weight ratio > weight distribution

    no offense but i dont see a carbed 350 with a cam and a 3 speed auto getting that kind of mpg
    FUCK B&D COMMUNICATIONS!


  3. #3
    The Chinese Chicken! secondgencamaro's Avatar
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    Quote Originally Posted by b18hatch
    no offense but i dont see a carbed 350 with a cam and a 3 speed auto getting that kind of mpg
    You just gotta build right. The cam I was talking about was very mild and described for a daily or bracket car. With vacuum secondaries, you just gotta keep out of the pedal to keep from opening the secondaries. I get 16/18 out of my 305 all day if I drive nice. If I dont, 13/15. Depends on how throttle happy you are.


    EDIT I was also assuming he used 2.83s or 3.08s. Anything shorter and I'd be afraid of breaking out the rear-end real easy 'cause of the weight of the car.

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    WANTS TO GO FAST! 2.0civic's Avatar
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    Quote Originally Posted by wicked76
    You just gotta build right. The cam I was talking about was very mild and described for a daily or bracket car. With vacuum secondaries, you just gotta keep out of the pedal to keep from opening the secondaries. I get 16/18 out of my 305 all day if I drive nice. If I dont, 13/15. Depends on how throttle happy you are.

    you gotta take that rear end ratio into effect to cause if your talking about a 10bolt say with 3.73??'s itll be quick but barely tap the gas and youll be doing like 60 turning hell of some rpm
    FUCK B&D COMMUNICATIONS!


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    The Chinese Chicken! secondgencamaro's Avatar
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    Quote Originally Posted by b18hatch
    you gotta take that rear end ratio into effect to cause if your talking about a 10bolt say with 3.73??'s itll be quick but barely tap the gas and youll be doing like 60 turning hell of some rpm
    I have 3.08s. I edited my last post when you posted this, lol.

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