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4500 Flange Carb Hat Needed

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Old Jun 6, 2005 | 03:29 PM
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Default 4500 Flange Carb Hat Needed

I found a place that sells them but they are huge (5" opening). Does anyone know where I could find one with a smaller opening. I will probably be running a 76GTS or at biggest an 88. They only have 3" intake flanges right? Thanks.
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Old Jun 6, 2005 | 07:25 PM
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Extreme Velocity makes them for the 4500 I believe.
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Old Jun 7, 2005 | 07:40 AM
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Originally Posted by B18B1LS1
Extreme Velocity makes them for the 4500 I believe.
Yeah, but they will not clear my 4" pin on hood. The damn thing is 5.5" tall and 14" long. I need something to clear my hood. Guess I could always cut the hood. Street car with intake piping visable through the hood, gotta love it.
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Old Jun 7, 2005 | 07:58 AM
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why are you using a carb hat?
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Old Jun 7, 2005 | 08:07 AM
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Because I have a 4500 serious flanged 2100cfm Accufab Throttle body.
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Old Jun 7, 2005 | 10:13 AM
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call extreme and see if they can make a shorter version. or cut and weld it yourself.
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Old Jun 7, 2005 | 10:23 AM
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this is going on an ls1 right? using the gmmp or similar manafold?

do you have any pics?
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Old Jun 7, 2005 | 10:28 AM
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LS1 yes, some pics but none of them are pretty right now, the car is a good bit apart. I'll send them if you're interested though. I checked speed concepts site and it looks like quite a few companies make one that may work. I like the paxton one so far, hopefully they make one for a 4500 serious tb though, they have them for 4150 for sure.
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Old Jun 7, 2005 | 10:45 AM
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Ahh, the joys of a 4500-flange.

I've got an EV4150 and it's amazing how much bigger the 4500 is.


Are you running a flat hood? A cowl hood should have no problem clearing the hat and wingnut though.
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Old Jun 7, 2005 | 11:31 AM
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The 4" hood will not clear it. Remember, I also have a 2" adapter which adapts my 4500 tb to 4150 intake. I didn't even think about the wingnut, damn this is a pain. I'll keep lookn'.
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Old Jun 7, 2005 | 11:37 AM
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might try these guys they might know what to use
http://www.csucarbs.com/
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Old Jun 7, 2005 | 12:21 PM
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They don't have one either. EV is the only one that makes one for the 4500 serious. SDCE will have one in about a month or more that would be perfect but I need one sooner then that, oh well. Gordon at EV suggested milling my manifold, adapter, and he could mill the hat some as well to gain clearence. I may do this, what do you guys think?
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Old Jun 7, 2005 | 12:40 PM
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throw the stock intake and TB on and wait for the SDCE
a month isnt to long.
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Old Jun 7, 2005 | 12:49 PM
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Stock intake and TB, what do they look like again. It's been a while since I've had those parts. I'll probably just go the way of the EV hat and some modifications.
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Old Jun 7, 2005 | 02:45 PM
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Originally Posted by DAPSUPRSLO
They don't have one either. EV is the only one that makes one for the 4500 serious. SDCE will have one in about a month or more that would be perfect but I need one sooner then that, oh well. Gordon at EV suggested milling my manifold, adapter, and he could mill the hat some as well to gain clearence. I may do this, what do you guys think?
That'll be your best bet. I'd mill the adapter and the manifold and if you still need to, cut the bonnet.
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