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#2458936 - 02/28/18 01:10 PM 2" TTI vs other headers ground clearance
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
Hey everyone, been a long time since I posted.

On my dart, I currently have 2" TTIs (vintage 12 or so years ago when I bought them) on a low deck. I'm not thrilled with the ground clearance, they hang down, and don't look all the nice.

You can ask why I have these headers on the engine I am currently am running, and I totally agree, they are overkill. At the time, I didn't want to buy parts twice, and was planning a stroker build (and still am..... someday....).

Anyway, I'm trying to determine for any of you that have went from 2" TTIs to possibly the 1 7/8" TTIs on a low deck, how much the ground clearance improved? The 2" I know were designed for the RB, but I'm not actually sure how different they are as I've never seen them side by side.

Otherwise, thinking about a set of Shumacher's or maybe something different. The Dart has AlterKtion, so I don't have as many clearance issues to deal with.

Thanks!
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Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2459116 - 02/28/18 07:54 PM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
bobby66 Offline
master

Registered: 07/11/04
Posts: 2984
Loc: Arlington, Texas
Do you have RB headers on a low deck engine?
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#2459148 - 02/28/18 08:41 PM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
fourgearsavoy Offline


Registered: 12/07/04
Posts: 9330
Loc: Rittman Ohio
There was a set of Doug's D451's on the return table at Summit the other day for $300 with 25% off that. Some guys have used 1 7/8" B-body tubes on A-bodies with small dings shruggy

Gus beer
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#2459207 - 02/28/18 10:13 PM Re: 2" TTI vs other headers ground clearance [Re: fourgearsavoy]
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
Bobby, if the two inch ttis are considered RB headers then yes, I am. That is part of what I want to confirm. They hang low.

Gus, thanks. I'm not familiar with those headers, they low deck specific? I'll look them up. Maybe I'll run up to summit over lunch tomorrow. They are probably gone but who knows.
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Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2459338 - 03/01/18 09:19 AM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
bobby66 Offline
master

Registered: 07/11/04
Posts: 2984
Loc: Arlington, Texas
On the TTI site they say a low deck engine must use a raised exhaust port head to run the 2" headers.
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#2459348 - 03/01/18 09:33 AM Re: 2" TTI vs other headers ground clearance [Re: bobby66]
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
Yeah, I saw that note too. I *think* that was mainly for clearance issues around the block, etc. I had to grind my block and slightly ding the header on the pass side. Otherwise, no issues, other than they hang lower than I want.

How much higher are raised exhaust port heads than standard? I'm sure it would help some with overall ground clearance, but I wonder how much...
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Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2459401 - 03/01/18 11:33 AM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
topside Online   content
I Live Here

Registered: 01/19/03
Posts: 12701
Loc: So Near, Yet So Far
I have a 440-based Duster, Indy heads, with those headers. No problem with ground clearance; Milodon pan is lower than headers. Car sits stock height if not a bit lower. They do interfere at pitman arm.

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#2459413 - 03/01/18 11:43 AM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
wedgg440 Offline
member

Registered: 08/14/08
Posts: 18
Loc: Ohio
If you go to the TTI catalog you will learn that when using a low deck block in an A-body you will need to use Indy SR heads on your build.The Indy SR heads have 3/4"raised exhaust ports and will raise your headers that amount.I built a 1970 Duster with that setup about 5 years ago and it fit perfectly with good ground clearance.

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#2459434 - 03/01/18 12:44 PM Re: 2" TTI vs other headers ground clearance [Re: wedgg440]
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
3/4" of an inch up would still not make me happy.

I'll try to get a pic of the headers and how low they are hanging and post. They are definately lower than the oil pan (rear sump 6 quart Mopar pan to clear rack on AlterKtion).
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Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2459442 - 03/01/18 12:55 PM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
bobby66 Offline
master

Registered: 07/11/04
Posts: 2984
Loc: Arlington, Texas
I've run their 1-3/4" headers on 400 and 440 engines and had plenty of ground clearance. Easy to work around, too.
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#2459782 - 03/02/18 01:39 AM Re: 2" TTI vs other headers ground clearance [Re: fourgearsavoy]
OhioMopar Offline
master

Registered: 08/17/03
Posts: 8455
Loc: Mt.Gilead, Ohio
Originally Posted By fourgearsavoy
There was a set of Doug's D451's on the return table at Summit the other day for $300 with 25% off that. Some guys have used 1 7/8" B-body tubes on A-bodies with small dings shruggy

Gus beer

I wish Doug's made something bigger than 1 3/4".
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Looking for my original 383 block. Last seen around the Atlanta area. 7449 are the last 4 of the VIN.

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#2461217 - 03/04/18 08:42 PM Re: 2" TTI vs other headers ground clearance [Re: OhioMopar]
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
Originally Posted By OhioMopar
Originally Posted By fourgearsavoy
There was a set of Doug's D451's on the return table at Summit the other day for $300 with 25% off that. Some guys have used 1 7/8" B-body tubes on A-bodies with small dings shruggy

Gus beer

I wish Doug's made something bigger than 1 3/4".


D452... I think that is a 2" header.

Here is a not so great pic of the headers on my car.


Attachments
smallheader.jpg


_________________________
Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2461393 - 03/05/18 08:25 AM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
OhioMopar Offline
master

Registered: 08/17/03
Posts: 8455
Loc: Mt.Gilead, Ohio
Originally Posted By Crazy68Dart
Originally Posted By OhioMopar
Originally Posted By fourgearsavoy
There was a set of Doug's D451's on the return table at Summit the other day for $300 with 25% off that. Some guys have used 1 7/8" B-body tubes on A-bodies with small dings shruggy

Gus beer

I wish Doug's made something bigger than 1 3/4".


D452... I think that is a 2" header.

Here is a not so great pic of the headers on my car.

Oops. I guess I didn't finish my thought. Bigger than 1 3/4 for a low deck.
_________________________

Looking for my original 383 block. Last seen around the Atlanta area. 7449 are the last 4 of the VIN.

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#2461467 - 03/05/18 10:53 AM Re: 2" TTI vs other headers ground clearance [Re: OhioMopar]
Crazy68Dart Offline
super stock

Registered: 07/23/03
Posts: 1194
Loc: Canton, Ohio
Originally Posted By OhioMopar
Originally Posted By Crazy68Dart
Originally Posted By OhioMopar
Originally Posted By fourgearsavoy
There was a set of Doug's D451's on the return table at Summit the other day for $300 with 25% off that. Some guys have used 1 7/8" B-body tubes on A-bodies with small dings shruggy

Gus beer

I wish Doug's made something bigger than 1 3/4".


D452... I think that is a 2" header.

Here is a not so great pic of the headers on my car.

Oops. I guess I didn't finish my thought. Bigger than 1 3/4 for a low deck.


No prob! I should have put that together myself, haha.
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Made my way over from www.bigblockdart.com. 68 Dart in the works.....383 for now, Hemi 4-Speed, AlterKtion, D60

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#2461536 - 03/05/18 01:19 PM Re: 2" TTI vs other headers ground clearance [Re: Crazy68Dart]
PurpleBeeper Offline
super stock

Registered: 07/05/11
Posts: 837
Loc: Chicago
I've never run TTI's at all, but I have run 2" Hookers & 2" Heddmans. The Hookers gave me about 2" more ground clearance vs. Heddman. Hookers had 1 slip tube & all 4 Heddman primaries were slip tubes. Hope this helps at least a little.
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