Author Topic: 1969 Mach 1, H code- Correct Muffler  (Read 3611 times)

Offline app01

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1969 Mach 1, H code- Correct Muffler
« on: May 05, 2012, 06:17:40 PM »
Hello,

This is my first post on this forum even though I have been a lurker for a while.

I am bringing out my 28k miles unrestored survivor  69 Mach 1this summer for the New England Nationals in July. When I had it at the last Nationals in Sturbridge MA, it received gold in the unrestored class.

it is: 1969 Mach 1, 351 H code (single exhaust), automatic trans. Build date 5/19/69

So here is my question, I know that I have the incorrect muffler that a PO owner installed, however, I am 99% sure that the rest of the pipes are original.  I would like to replace the incorrect muffler with the closest correct one and have not been able to find  one.

I think the correct one should be: 2.5" inlet side which is offset to one side, 2" outlet that is centered and approximately 18" long. Does this sound correct?

All of the repro ones I have found are 2.25".

Can someone please point me to the what would be the best muffler to use?

I am also going to attempt to cut the existing muffler off without damaging the existing pipes so I can reuse the,/

Thanks,

Tony
« Last Edit: May 05, 2012, 09:32:22 PM by app01 »
Currently own:
1970 Boss 302 - Yellow- May 1970, Dearborn
1970 Mach 1 -Sept 1969, Metuchen
1962 Corvette 340hp

Previously Owned:
1967 Mustang Convertible (My 1st car)
1970 Mach 1 (my 2nd car)
1989 GT
1969 Mach 1 (<29k miles, Unrestored, MCA Gold)-sold in 2012

MCA #62598

www.PalmieriConcepts.com

Offline svo2scj

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #1 on: May 06, 2012, 06:52:35 PM »
I'd be in a field in PA the month before !!

Mark
« Last Edit: May 07, 2012, 05:42:31 PM by svo2scj »
1969 R Code , Sportsroof (non Mach) W Axle
AB , Standard Interior  San Jose built 4/22/1969

priceless

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #2 on: May 08, 2012, 07:36:54 AM »
Hello,

This is my first post on this forum even though I have been a lurker for a while.

I am bringing out my 28k miles unrestored survivor  69 Mach 1this summer for the New England Nationals in July. When I had it at the last Nationals in Sturbridge MA, it received gold in the unrestored class.

it is: 1969 Mach 1, 351 H code (single exhaust), automatic trans. Build date 5/19/69

So here is my question, I know that I have the incorrect muffler that a PO owner installed, however, I am 99% sure that the rest of the pipes are original.  I would like to replace the incorrect muffler with the closest correct one and have not been able to find  one.

I think the correct one should be: 2.5" inlet side which is offset to one side, 2" outlet that is centered and approximately 18" long. Does this sound correct?

All of the repro ones I have found are 2.25".

Can someone please point me to the what would be the best muffler to use?

I am also going to attempt to cut the existing muffler off without damaging the existing pipes so I can reuse the,/

Thanks,

Tony
I wish you luck. I've been up against the same thing for quite some time. My "Y" pipe and intermediate pipe on my H code 2 barrel is original and a 2.5" inlet on muffler as well. My muffler isn't original either. And nobody seems to know where you can get either repro or original replacements.  I once had Scott fuller tell me to use 2.25" clamps and modify them, Which I thought, "Nope", not gonna modify a clamp to try to make the clamps  look original. but yet I still get marked off at MCA shows for clamps not being correct.  Is OK though, I pick up in other areas to compensate the loss of points with the clamps.  And I'm only 2 points away from my Grill Medallion and putting my Mach 1 in Conservator.  Good Luck in your search. 
« Last Edit: May 08, 2012, 07:48:06 AM by priceless »

Offline app01

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #3 on: May 08, 2012, 11:38:54 AM »
I have randomly been looking for a muffler for a few years.

You mentioned 2.5" on the inlet side, however, is your outlet to the tailpipe also 2"?

thanks,

Tony
Currently own:
1970 Boss 302 - Yellow- May 1970, Dearborn
1970 Mach 1 -Sept 1969, Metuchen
1962 Corvette 340hp

Previously Owned:
1967 Mustang Convertible (My 1st car)
1970 Mach 1 (my 2nd car)
1989 GT
1969 Mach 1 (<29k miles, Unrestored, MCA Gold)-sold in 2012

MCA #62598

www.PalmieriConcepts.com

Offline craig429

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #4 on: May 08, 2012, 03:35:55 PM »
I just found this on Ebay doing a search for parts for my 70. I have no idea if it is correct or not for you guys, They also have one for a 70 single exhaust.

http://www.ebay.com/itm/NOS-1969-1970-Ford-Mustang-Shelby-GT-350-Muffler-351ci-/120909948557?hash=item1c26cb668d&item=120909948557&pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr
1967 Mustang Sport Sprint Coupe 289 Auto, AC, PS, CA Smog, Built April 1967 in San Jose.  Unrestored, one family owned and in my possession since 1980.
1969 Mustang Mach1 390
1970 Mustang Mach 1 428SCJ Auto, PS, PDB, medium bright blue metallic with White Shaker, built Sept 12, 69 in Metuchen

priceless

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #5 on: May 08, 2012, 08:56:46 PM »
I have randomly been looking for a muffler for a few years.

You mentioned 2.5" on the inlet side, however, is your outlet to the tailpipe also 2"?

thanks,

Tony
Yes, 2" on the outlet for the tailpipe. 

priceless

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #6 on: May 08, 2012, 09:04:21 PM »
I just found this on Ebay doing a search for parts for my 70. I have no idea if it is correct or not for you guys, They also have one for a 70 single exhaust.

http://www.ebay.com/itm/NOS-1969-1970-Ford-Mustang-Shelby-GT-350-Muffler-351ci-/120909948557?hash=item1c26cb668d&item=120909948557&pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr
No, this isn't it. An engine code H is single exhaust, and yes, they did put single exhaust on a '69 Mach 1. We had our Mustang judged in the concours class(Driven) at Pensacola by a very knowledgeable judge(no names mentioned)(actually, he's an MCA National director), and he was going to mark off for our single exhaust because he said it wasn't correct. I told him to go do his homework, then come back to see me.
  Well, he came back in an hour or so, and said he was very surprised and didn't know that the '69 Mach 1 ever came with single exhaust.
Well, we learn something new everyday.


Offline craig429

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #7 on: May 08, 2012, 11:21:17 PM »
1967 Mustang Sport Sprint Coupe 289 Auto, AC, PS, CA Smog, Built April 1967 in San Jose.  Unrestored, one family owned and in my possession since 1980.
1969 Mustang Mach1 390
1970 Mustang Mach 1 428SCJ Auto, PS, PDB, medium bright blue metallic with White Shaker, built Sept 12, 69 in Metuchen

Offline app01

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Re: 1969 Mach 1, H code- Correct Muffler
« Reply #8 on: May 09, 2012, 04:03:45 PM »
Thanks. It is actually a little too long. The best I have been able to figure out is the can  should be approx 18" long.. So I think :)
Currently own:
1970 Boss 302 - Yellow- May 1970, Dearborn
1970 Mach 1 -Sept 1969, Metuchen
1962 Corvette 340hp

Previously Owned:
1967 Mustang Convertible (My 1st car)
1970 Mach 1 (my 2nd car)
1989 GT
1969 Mach 1 (<29k miles, Unrestored, MCA Gold)-sold in 2012

MCA #62598

www.PalmieriConcepts.com