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Old 05-16-2010, 10:17 AM
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283 or 327???

i have jsut bought a 83 gmc sierra, it currently has a straight 6 in it and the choke is messed up. You need to hold it open by hand to start it when it is cold.

I have a 327 and a 350 in the garage, however my dad doesnt want me puttin in the big engine yet because i am still only 17 and this is my first truck. I want a engine that will give me power so i can use it as a work truck.

any suggestions?????

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Old 05-16-2010, 10:45 AM
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Ayuh,... Seems it would be easier,+ make your Dad happier to just Fix the Carb....
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Old 05-16-2010, 12:12 PM
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Hi,
If your being honest and want power just for working, leave the 6 cyl in there & repair it (carb).
Or you could maybe talk with your Dad & put an RV/towing camshaft in the 350 or 327,
thus increasing the torque & limiting the rpm to around 4,500
Rich
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Old 05-16-2010, 07:04 PM
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thanks, i was working on the truck today and fixed the carb.
how much more power can i get out of the 6 tho?
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Old 05-17-2010, 10:36 AM
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Hi,
"How much more power can I get out of the 6 though?"
They can have enough power that your Dad won't let you drive it.
More power is directly related to how much money are you prepared to spend.
The link will give you an idea of some things that are available, and the prices.
Rich

http://www.cliffordperformance.net/M...gory_Code=C250
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Old 05-17-2010, 10:57 AM
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Quote:
Originally Posted by t's shop
i have jsut bought a 83 gmc sierra
I hate to be a buzz-kill, but that nearly 30 year old PU need a total going over: Tires,
brakes, fluids, wipers, battery/electrical/wiring/lights, coolant, tranny filter and fluid, check U-joints and suspension (especially springs and shocks) for wear/breakage, etc.

Once you get to the engine, run a compression test on it, and hook up a vacuum gage to tune with.

Give it a thorough tune up, including plugs, wires, cap, rotor, air and fuel filters, PCV valve, belts, hoses, oil and filter, adjusting the carb (rebuild it if needed).

Once that's out of the way, assess what you actually have, and go from there. If everything's up to snuff, probably the least expensive mods that will actually get you some power, is setting the ignition timing/curve, a free flowing air filter and free flowing exhaust.
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