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12-03-2000, 08:24 PM
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#1 |
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Registered Member
Join Date: Apr 1999
Location: seffner, Florida, usa
Posts: 95
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GT40 or Truck upper?
I have a 347 short block with ported polished performer heads, Cobra ported polished intake, BBK 1 3/4 long tube headers.
I would like to know if I should replace the Cobra upper with a GT40 or Explores truck intake. Please advise. Thanks Red Rider |
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12-03-2000, 09:47 PM
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#2 |
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gear banger
Join Date: Aug 2000
Location: CHICAGO
Posts: 1,144
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Why don't you just port the hell out of the cobra intake that you have? I'm not sure, but I heard that the cobra upper will flow more then the gt40 if you get it fully ported. That will save you money for more mods.
------------------ blown347,free breathing heads and exhaust, solid roller cam, tremec,moser axles, 4.10's, role cage and all the other stuff. 11.8 @ 115 very untuned |
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12-03-2000, 11:11 PM
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#3 |
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Registered Member
Join Date: Oct 1999
Location: Gordonville MO USA
Posts: 448
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from whatI understand, the explorer is about the same as the Cobra, both of which flow more than the GT-40 which is a little more of a torque / mid-rpm range manifold. If you really want to do something with your Cobra, check into having it extrude-honed.
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12-04-2000, 10:25 AM
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#4 |
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Registered Member
Join Date: May 2000
Location: Kamloops, BC
Posts: 2,875
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I thought that you could not put an Explorer upper with a Cobra lower...
------------------ White 1995 Mustang GT Dynomax Cat-Back Custom H-pipe K&N Filters w/o Air Silencer My 1995 Mustang GT |
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02-04-2001, 03:10 PM
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#5 | |
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Guest
Posts: n/a
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Quote:
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02-04-2001, 04:48 PM
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#6 |
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Registered Member
Join Date: Oct 2000
Location: Tulare, CA
Posts: 83
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I used the GT 40 upper intake and was not very impressed compared to the Cobra "Extrude Honed" intake. Comparing the two I did managed to get another 15hp out of it. I had them gasket match to a Felpro 1250 and had the Edelbrock heads ported to match. The GT40 is a nice looking intake, but you can't do much with it.
------------------ 89 (GR40 Griggs)Hatch 89 Coupe 90 Coupe |
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