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01-08-2008, 05:25 PM
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#1 |
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Registered User
Join Date: Sep 2006
Location: st pete
Posts: 404
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4.3 mods
has anyone done anything to a 4.3 for performance or milage??
will a 5.3 bolt in were a 4.3 sits? what all is needed |
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01-15-2008, 09:09 AM
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#2 |
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chrome makes it go FASTER!
Join Date: Feb 2007
Location: Cleveland Tennessee
Posts: 2,884
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Re: 4.3 mods
I had flowmasters on my Blazer 4.3
I also had the tranny rebuilt with a 1st/2nd , 2nd/3rd shift kit installed also a new torque convertor. Averaged 20-22 mpg highway.
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She can't cook and she won't clean. But she looks good in a skirt and she brings me beer. She can stay for now. EDIT:: But she left me anyway, So forget her. 1962 GMC Stepside V6 4 speed My rolling resto thread http://67-72chevytrucks.com/vboard/s...d.php?t=324226 My old farm truck http://67-72chevytrucks.com/vboard/s...=1#post3465005 |
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01-17-2008, 10:21 AM
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#3 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: 4.3 mods
You can do the typical intake, exhaust and computer tune mods. They usually help out because you got more air in and out, and you optimize the computer for it at the same time.
For a muffler, I'd recommend a 50 or 70 series Flowmaster. I think 90 degree V6's can sound a little ricey at higher RPM's with a loud exhaust. If you go to an exhaust shop that is familiar with performance exhaust, they can give you a good recommendation. |
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01-17-2008, 05:22 PM
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#4 |
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Registered User
Join Date: Sep 2006
Location: st pete
Posts: 404
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Re: 4.3 mods
whats the best comp for the money i am looking for milage and performance i know its only a 6 but i seen some qwick ones
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_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 1972 K10 4"lift 33"tires (soon to be bigger and better) 2000 silverado 1500 2wd 2"coil spacers3" BL 285/75/16's |
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