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Old 08-11-2006, 12:03 AM
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318 are they good for econamy/power?

im looking at a 1973 dart and it has a 318 and i herd you could get 20 mpg out of one but that didnt sound right to me also can you get any power out of one im looking for the most ecaonamy/power. does anyone have any tips on how to do that?

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Old 08-11-2006, 12:48 AM
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Oh yeah, 318's are very nice motors, regardless of what some may say. Stock they should get decent gas mileage, if not 20 mpg, then at least 15-17 if the motor is healthy. A lot of 318 Dakota's running around. And when modified, these things are no slouches. They can pack a punch of their own. Many people underestimate these engines due to the fact of such small displacement and such, but nonetheless, these motors are sort of like the underdog of the Mopar world of smallblocks.
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Old 08-11-2006, 08:23 AM
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Nice little cars those are and the 318 can put out some good power and surprise some SBC's ..If I were to find one I woudl certainly look at bringing it home of I were to be allowed another project around here..

I have had a couple of 318 powered rigs and they were all good vehicles..

I have tried most all of it and now do what is known to work..
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Old 08-11-2006, 09:14 AM
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4 inch bore is what makes the 318 the great motor that it is.

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Old 08-11-2006, 10:10 AM
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A friend of mine had a 74 duster 318.

We put a cam, dual plane intake, 600 cfm holley, headers, mopar hot box and 2-1/2 in duals and he got better mileage than the 2bbl single exhaust. when he put in the 3.90 gears, mileage dropped in proportion to the increase in acceleration.

Light footing it still netted mileage almost as good as bone stock.
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Old 08-11-2006, 10:17 AM
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Great little motor,can be dressed up.Easy to work on,Johnny
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