347 stroker exhaust

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Offline DUNRITE66

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347 stroker exhaust
« on: January 21, 2012, 10:26:36 pm »
Looking for advice on exhaust system size for 347 stroker engine. Twin 2 1/2 or  twin 3 inch with x pipe or balance pipe...
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Offline EXHAUSTED

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347 stroker exhaust
« Reply #1 on: January 21, 2012, 11:10:42 pm »
4 into 1 headers, twin 3" up to & including mufflers, 2.5" tailpipes, X pipe or Pacemaker merge pipe. Depends on if you are working the heads, cam, etc & portmatching the manifolds too suit. Injection or carby. If it is only going to be a slightly warm 347 stroker then twin 2.5" will be fine. You've got to think of what sort of driving you want to do.:burnout:
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Offline pegasus

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347 stroker exhaust
« Reply #2 on: January 21, 2012, 11:23:00 pm »
I got a set of JBA stainless headers for my 347w, [66 coupe]  they have 1.3/4' pipes an a 3' collector, will also be using a Magnaflow X pipe, I'm thinking of a 3' stainless system for my car...
My motor is a little on the warm side, should clear 500hp at the flywheel...
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Offline DUNRITE66

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347 stroker exhaust
« Reply #3 on: January 22, 2012, 11:17:20 am »
Quote from: pegasus link=topic=16914.msg168828#msg168828
I got a set of JBA stainless headers for my 347w, [66 coupe]  they have 1.3/4' pipes an a 3' collector, will also be using a Magnaflow X pipe, I'm thinking of a 3' stainless system for my car...
My motor is a little on the warm side, should clear 500hp at the flywheel...
those jba's....have you fitted them up as i have been through 3 sets of pipes and not one fitted properly.... i have just modified a set of shorties which are 1 5/8" with 3" collector.... i made 450hp with 430ft pd torque... will a 2 1/2" be enough or do i go twin 3"... wanted a set of full length headers but all of them hung too low under the car and i had bugger all clearance as car sits about 70mm lower than stock... thats the only reason i have opted for shorties.... dont want  spend 2k to custom make a set of pipes....
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Offline allenmr

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347 stroker exhaust
« Reply #4 on: January 22, 2012, 01:28:35 pm »
I recently installed a 2.5" S/S magnaflow system #15815 They also do 3"... "Exhausted" put me on to a guy who supplied a set of 1.5" pace makers that actually fit. (thanks again for that) They are on my 347 and sound unbelivable! You will not be dissapointed.

I got the complete exhaust system (not headers) from the US. A$700  landed in perth from a company called tobys autos (i think) check Ebay. Aussie price was between $1000-1200
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Offline DUNRITE66

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347 stroker exhaust
« Reply #5 on: January 22, 2012, 04:59:06 pm »
Quote from: allenmr link=topic=16914.msg168867#msg168867
I recently installed a 2.5" S/S magnaflow system #15815 They also do 3"... "Exhausted" put me on to a guy who supplied a set of 1.5" pace makers that actually fit. (thanks again for that) They are on my 347 and sound unbelivable! You will not be dissapointed.

I got the complete exhaust system (not headers) from the US. A$700  landed in perth from a company called tobys autos (i think) check Ebay. Aussie price was between $1000-1200
was that 700 aus landed or 1200aus landed...cant find tobys auto but have found some complete systems....not the same part number , but mine is a 66 stang though.....
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Offline EXHAUSTED

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347 stroker exhaust
« Reply #6 on: January 22, 2012, 05:40:55 pm »
To suit '65 -'66                     2.5"  system   15815,  3" system  15817
To suit '67 - '70                   2.5"  system   15816,  3" system  15819
None of these system will fit a convertible without  slight modifications to centre pipes to clear support plate.
Australian supplier for Magnaflow is Super Cat Converters Pty Ltd / Melborne Steel Company.
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Offline allenmr

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347 stroker exhaust
« Reply #7 on: January 23, 2012, 08:48:04 am »
A$700 delivered to front door. I used a US post box. Ebay price is around $520 shipping $180. I thought it was tobys but after searching i couldnt find either... plenty of others have for similar price. Set up a US post box for cheap shipping on most stuff (not all)
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Offline Ash

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347 stroker exhaust
« Reply #8 on: January 24, 2012, 10:59:19 am »
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Offline DUNRITE66

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347 stroker exhaust
« Reply #9 on: January 24, 2012, 10:09:52 pm »
shame its for a 67 onwards.... bought some hooker mufflers today so going down that track...
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Offline jusTANG

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347 stroker exhaust
« Reply #10 on: January 25, 2012, 10:30:39 am »
Quote from: allenmr link=topic=16914.msg168939#msg168939
Set up a US post box for cheap shipping on most stuff (not all)


sorry for hyjack but Allen tell us more?????
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Offline Blue Oval

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347 stroker exhaust
« Reply #11 on: January 25, 2012, 07:54:17 pm »

 I run 1 5/8" primary 4 into 1 3" collector with a twin 2 1/2" mandrel bent exhaust.

 I have run 11.22 with this hooked up and 11.21 best with the exhaust dropped at the collector.

 So it seems my twin system is not holding the engine back at all.
 347 engine dynoed at 486hp. Mph over the 1/4 pretty much agrees.

 I would have tried these 1 3/4" tubes if I hadn't already bought the ones I have.

 The whole setup looks impressive..

 http://www.bestmufflers.com/Information/Custom%20Systems/custom_exhaust_system_ford_mustang_66.htm

 
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 1966 GT Coupe. AFR 185 heads, Hyd Roller cam.  1/4 mile 11.21 sec @123mph
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