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Old 05/29/2012, 07:55 AM   #1
green56
 

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Muffler size

Would like to install flowmaster but i do not know what size to put in and have a little rumbule their are to many to chose from the eng is a 289 if that matters thanks Tom
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Old 05/29/2012, 09:57 AM   #2
franklinair
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For a stock 289, 2" is adequate. I like duals with an 'H' pipe coming off the manifolds.

Neil
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Old 05/29/2012, 11:15 AM   #3
hcsstang
 

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MCA calls for a tranverse muffler

302 V4 HCS
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Old 05/29/2012, 11:29 AM   #4
green56
 

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muffler

now i know what size but what about noise would like some but not to loud
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Old 05/29/2012, 03:49 PM   #5
CougarCJ
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Spaceman Spiff

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Stay with 3 chambers, 2 chamber turbos resonate too much.

Scott Behncke
1968 GT/CS 302-4V Honors flysis income beezis onches nobis inob keesis
West Coast Classic Cougar A good source for Mustang mechanical parts too.
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Old 06/02/2012, 11:14 AM   #6
robert campbell
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+ one to Scott. I have two chamber flows and they are loud!!
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Old 07/02/2012, 10:57 AM   #7
green56
 

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Mufflers

What is this Travirse muffler that MCA requires?
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Old 07/02/2012, 11:27 AM   #8
Mosesatm
 
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It looks like this.

You can purchase one here.
http://www.scottfullerreproductions....29/6245393.htm
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Old 07/02/2012, 11:13 PM   #9
Edward Bodoh
 
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X CODE

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Does the tranverse MCA correct muffler apply for the 302 as well? As in thats how they were made off showroom in 68...like your picture shows. BTW very nice undercarriage ! Starting my Gt Cs restoration this fall so I'm gathering all the info I can from you guys here. Thanks...
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Old 07/03/2012, 05:19 AM   #10
Ruppstang
 
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The transvers muffler was used on all engines. The duel exhaust with quad tips was used only on J code 302, S code 390 and R code 428 with the GT option. The rest had single exhaust. The only MCA classes that you would get a deduction for not having a transverse muffler would be Concours driven, Concours trailered, Throroughbred and Unrestored. Most cars are shown in Occasional divers class where we only judge on cleanlyness, condition and workmanship. Not on authenticity.
Marty MCA 38812

Follow HCS restoration at http://68hcs.weebly.com
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Old 07/03/2012, 05:43 AM   #11
green56
 

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Muffler size

Looking under your car in the picture how far does the red paint go and start?you just cover the black up?
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Old 07/03/2012, 06:44 AM   #12
Mosesatm
 
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Tom and Edward,
Unfortunately, that's not my car. I just took the photo from a car listed on carsonline.com.
http://www.legendarymotorcar.com/sit...helby_GT500_KR

Tom,
I think the red oxide goes all the way to the engine compartment, but it should have overspray on it from when the exterior of the car was painted, and the pinch welds were painted.
The photo seems to be a fairly good example of a proper undercarriage but Marty or others would be a better source than me.
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