intakes for a 300I6

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Old 01-15-2005, 09:44 PM
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Question intakes for a 300I6

i have a 1979 f100 with a 1975 300 inline six in it. it runs fine and i get good gas mileage but i want sumthin that has more pick-up and go that just a single barrel carb. ive looked at triple 1 barrel intakes but i cant find them anymore. does anyone know where i can find one?
 
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Old 01-15-2005, 11:38 PM
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[QUOTE=yaki69]i have a 1979 f100 with a 1975 300 inline six in it. it runs fine and i get good gas mileageQUOTE]

DO WHAT?
If you get good gas mileage out of your 300 I would say leave it alone. You already have something everybody wants.

Whats your secret?
 
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Old 01-16-2005, 02:42 PM
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Offenhauser makes a 4 bbl intake for about $200. Many hotrod catalogs have it as well as JC whitney. Clifford makes one too, but $$$. Don't over-carb; they say a 390 or 450 is best. You'll need to open up that exhaust, too. The later split manifolds from FI engines are supposed to really help, or you can always get headers. Ya can't put more in without lettin' more out! IMO, 3 one bbl's would drive you nuts keepin' 'em tuned, but it would look cool. Clifford still makes tose, too, I think. There is a sticky at the top of this forum about more power. Check it out.
 
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Old 01-16-2005, 05:18 PM
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hey, yea i know i get good gas mileage, but i want sumthin that'll outshow my other freidn with their suv's and older trucks. ive read that with a offenhauser 4 bbl set up and with hedman headers i can make over 340 hp with it, so i dunno, gas mileage/ quicker runs to the store....
 
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Old 01-16-2005, 05:24 PM
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speaking of 300 I6's does anyone need one? i have a spare from a '85 ton truck that i got for free. i dont knwo the miles, but its been rebuild by my mechanic in alabama. runs smooth and everything. i was gonna use it in a old 32 frame for a rat rod fixer-upper but i prolly gonna sell it. goes to highest price. if you would like to get a hold of me, my home number is (865)470 8036, ask for jacob.
 
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Old 01-16-2005, 06:45 PM
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Where are you located, im in alabal, I wont give ya much, but oh well. I think getting 200 outa a intake and headers is gonna be a little more pheasable. Ive been laughed at for basically the above remark. I think that the guy who got his totally custom built buy the owner of an engine building shot is somewhere around that. But im talking custom everything.
 
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Old 01-16-2005, 06:56 PM
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im in knxoville. well the stock 300I6's produced anywhere form 112 to 125 hp depending on year. mine has approxiamately 115hp, and with headers i can increase that by 50 %, so thats 175hp +/-, and with headers, and a cam itll produce 150 more hp so thats 325 hp so....i may also be wrong, but jegs is where i got all my info.
 
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Old 01-16-2005, 07:20 PM
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hmm, i dont really think so, im thinking 250 hp max with a 4 barrel, intake, headers, and exhaust.
 
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Old 01-16-2005, 07:39 PM
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wel with a bigger cam, and sum shaving of the head, and such i dont think 300 is that far out in the ball park
 
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Old 01-16-2005, 08:43 PM
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With a cam and intake, carb, headers, exaust. on a 115hp 6 will be MAYBE at the most like 200.Yaki69 what you are doing is HP staking and it realy doen't work that way.One component just complement anther.
 
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Old 01-17-2005, 12:58 AM
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I say no way to headers adding a 50% horsepower increase. Same thing to the idea of a cam adding 150 horses. I think Jegs is leading the Tuner generation to believe things like adding a K&N air filter will turn their grocery getter into a street drag car. Great marketing scheme but you dont just bolt on all that is necessary to get maximum power and efficiency out of an engine. I guess in the age of Tuners it is necessary to keep things as simple as possible when it comes to engine work. I work in parts. I know the general mentality out there. I'm sorry but the other day I had a "mechanic" hand me an exhaust clamp marked 2 1/4 and ask me if that meant two and a quarter. This person works on cars! Believe me, keep it simple. Somebody may have to resort to reading directions or getting training. "The Horror" Brando
 
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Old 01-17-2005, 10:55 AM
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Try a crossflow aluminum head on your 300 six

Look at the head listed in the classified ads. It will make your dreams come true,but you must build your own manifolds. For real freaky motor heads only.
 
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