347 HEADER Q'S

muddslide

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Mar 10, 2003

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DAYTONA BEACH

Jan 29, 2006

#1

• Jan 29, 2006

• #1

I need advise on my headers. Currently with my combo, I only have stock 1 5/8 headers on my car. I think I just blew out a header gasket on my car, I just need a bigger header. I looked a custom headers and found them for my 347 up too 2 1/8 for 750.00 dollars. Can I fit a 351 header on my 347 block to fit my 67 stang? Does anyone have good advise...

 

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95conv5.0

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Mar 30, 2005

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Jan 29, 2006

#2

• Jan 29, 2006

• #2

just run a cheap set of 1 3/4 longtubes and they will do ya just fine

 

muddslide

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DAYTONA BEACH

Jan 29, 2006

#3

• Jan 29, 2006

• #3

I was told by another blower guy I needed at least a 1 7/8. I'm also hoping to run 18-20psi and 116 race fuel at the track. I have dumps that also lead to a 3" flowmaster exhaust.

 

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IntenseBlue

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Jul 10, 2005

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Jan 29, 2006

#4

• Jan 29, 2006

• #4

Look up Kook's custom headers and call them. They'll tell you what sizes you need to look at it. They're custom header proffesionals.

 

muddslide

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DAYTONA BEACH

Jan 30, 2006

#5

• Jan 30, 2006

• #5

I was trying to aviod the 750.00 cost of them, there are real nice but costly.

 

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86bluecobra

Advanced Member

Dec 20, 2004

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69

B.C. Canada

Jan 30, 2006

#6

• Jan 30, 2006

• #6

351w headers will be 2 long for your application. they will hang down to low and be distroyed my speed bumbs.

 

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IntenseBlue

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Jul 10, 2005

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Jan 30, 2006

#7

• Jan 30, 2006

• #7

muddslide said:

I was trying to aviod the 750.00 cost of them, there are real nice but costly.

Click to expand...

I should've worded what I said better. I wasn't advising you to go with a set of custom headers, but rather contact proffesional header experts to guide you to what size headers you need. Even if you don't want a set of their custom headers, I'm sure they'd tell you which size you need.

 

muddslide

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DAYTONA BEACH

Jan 30, 2006

#8

• Jan 30, 2006

• #8

Thanks, anyone else with this problem...I guess I need to start saving..

 

muddslide

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DAYTONA BEACH

Jan 31, 2006

#9

• Jan 31, 2006

• #9

Who make a cheap 1 3/4 long tube for 67 stangs? Anyone using them? Thanks

 

J

jaredgoodwin

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Sep 29, 2004

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Jan 31, 2006

#10

• Jan 31, 2006

• #10

Check Accufab

 

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304billet

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Sep 16, 2005

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Jan 31, 2006

#11

• Jan 31, 2006

• #11

I would do 1 7/8' stepped to 2" with 3 1/2" collectors, ceramic coated. RCI in the back of Race Pages will make u a custom set for $650. They r the bomb, bar none. Match that up with Dr. Gas 3 1/2" by 3 1/2" X-pipe.

My friend just did this combo on a R331ci stroker with 25lbs from a YSi trim. he was putting down 780rwhp w/ 1 7/8" with 3" collectors.

 

bluevenom867

I will have images of molesting stuffed animals in

Dec 15, 2003

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St.Petersburg,FL

Jan 31, 2006

#12

• Jan 31, 2006

• #12

1 3/4" is all you need...

1 7/8" if you plan on turning more rpm's or overdriving the blower alot for more boost.

Longer will make it more torque,short will give you more top end.

Collector,well,3"-3.5" but I would do a 3" exhaust.

To big will over scavange the exhasut and you will loose boost and blow the a/f charger right out the exhaust,to samll,and you'll get to much charge contamination and back pressure.

BTW,how do you like the BDS 6-71 blower?

Were thinking of getting a kit from BDS,but we would need an 8-71 and they dont list it for the 351W.

 

muddslide

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DAYTONA BEACH

Feb 1, 2006

#13

• Feb 1, 2006

• #13

I love the blower, I got my set up from Hamptions, would do it again. Maybe I should try the shorties if they will work. I have 3" exhaust after the collectors and I also have dumps. I was hoping anyone with an early stang would have tried this already.

 

muddslide

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DAYTONA BEACH

Feb 2, 2006

#14

• Feb 2, 2006

• #14

Will shorties work on my 67?