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09-02-2007, 01:56 PM
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#1 |
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Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Flowtech Header ?
May have been asked before, but how good do the Flowtech headers for sbc fit on our trucks. Also, anyone used their ceramic coated ones? I found what looks like a good price for them and I have a $40.00 promotion code.
http://www.jcwhitney.com/autoparts/S...searchbtn.y=12
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1997 GMC Sierra Ext 1965 Mustang |
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09-02-2007, 02:39 PM
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#2 |
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Registered User
 
Join Date: Aug 2005
Location: Philly
Posts: 1,140
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Re: Flowtech Header ?
I'm running a set of these. I put them in in February '06 and they have held up ok although my truck's not a daily driver. They've lost that nice shine they had but no rust as of yet (ceramic coated).
I remember one side needed some "modification" to fit; may have been the driver's side but nothing a couple of hammer wacks couldn't fix. Also, if you have A/C there is mounting kit sold separately that you will need to mount A/C bracket and header. |
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09-02-2007, 02:52 PM
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#3 |
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Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: Flowtech Header ?
Do they clear all the spark plugs and wires? Are the plugs fairly easy to get to?
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1997 GMC Sierra Ext 1965 Mustang |
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09-02-2007, 04:51 PM
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Union Electrician
Join Date: Feb 2005
Location: Louisville, Ky.
Posts: 3,354
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Re: Flowtech Header ?
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 69 Custom-10 SWB FLEETSIDE  350/350 TH Dropped 3.5/5.5"Help support the board->HERE Board vendors -> Vendors list Zip:40272 Big Sandy Survivor... Quote:
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09-02-2007, 05:09 PM
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Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: Flowtech Header ?
Yes, but are they the ceramic ones. I have a set of Hedmans that fit like crap and have a hard time getting to the #5 and #6 spark plug. Had to dent them up to fit. Ask 70c10 about them....
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1997 GMC Sierra Ext 1965 Mustang Last edited by 70GMCer; 09-02-2007 at 05:10 PM. |
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09-02-2007, 06:49 PM
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sufficiently talented fool
Join Date: Jun 2006
Location: Forest Hill, MD
Posts: 2,231
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Re: Flowtech Header ?
Steve, I have a set of the regular (painted) Flowtech headers on mine. I have not tried to pull a plug or anything yet, so I cant help you there. Call me and come by and check them out if you want to.
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"it's impossible to be surrounded by idiots when you are part of the circle"  2003 Suburban 2002 Pontiac Montana 1981 Corvette 1966 Impala Convertible Click here to support the board |
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09-02-2007, 06:59 PM
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Between Trucks...
Join Date: Mar 2002
Location: Los Angeles, CA.
Posts: 3,830
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Re: Flowtech Header ?
I had some regular painted Flowtechs, they fit well on my '72. No problems changing sparkplugs or anything. The only thing with them was that I had to use smaller headed header bolts to clear the tubes, I actually ended up using studs. I'd buy them again..
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Beat it to fit, Paint it to match... 
Last edited by Sinister; 09-02-2007 at 07:00 PM. |
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09-02-2007, 07:03 PM
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#8 |
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Registered User
Join Date: Apr 2007
Location: Norman, OK
Posts: 222
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Re: Flowtech Header ?
I have had a set on my 67 for about 6 years. They seem to fit pretty good. Plug #6 is blocked to the point that I have to use a wrench to get it out. The #5 tube bumps against the frame from time-to-time, but nothing that bad (probably specific to my install).
Overall, I think they're a decent value, but will go with Hedman Elite next time around. HomerJ
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67 C-10 LWB "Cow-butt-spotted" (neighbor's term) - work in progress. 350/TH400/3.73 67 Chevelle SS Clone 454/TH400/3.73
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09-02-2007, 07:10 PM
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#9 | |
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Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: Flowtech Header ?
Quote:
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1997 GMC Sierra Ext 1965 Mustang |
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09-02-2007, 07:11 PM
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#10 |
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Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
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Re: Flowtech Header ?
Still wondering about the ceramic ones. Anyone know if they are coated on the inside?
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1997 GMC Sierra Ext 1965 Mustang |
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09-02-2007, 07:52 PM
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#11 |
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Aluminum slot wheels rule...
Join Date: Jan 2006
Location: Maine
Posts: 6,211
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Re: Flowtech Header ?
I bought some Dynomax headers, and after digging around the box I found a Flowtech exhaust sticker, so I assume they are reboxed Flowtechs, but anyway. I have no problems with them on my 68 4x4. The passenger side collector flange scrubs the driveshaft, but a little grinding will easily fix that. The plugs are pretty good to put in and take out, could be better but could be a lot worse too. But other than that I am very happy with them, both with the fitment and the quality. My friend bought some Hedmans for his Dodge 4x4, he hasn't put them on yet, but I wasn't impressed with the quality. I thought my Dynomax/Flowtechs were way ahead of them.
But thats just my 2 cents worth and my little experience with headers. |
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09-02-2007, 07:56 PM
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Like a Rock!
Join Date: May 2002
Location: USA
Posts: 1,092
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Re: Flowtech Header ?
I contacted flowtech 2 years ago and was told the inside is NOT coated to try to keep the cost down to the consumer. The headers are only 1.5" diameter as opposed to 1 5/8", so for performance I would go with something else.
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69 LWB Runs great - work in progress Mess with me and you mess with the whole trailer park! 
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