Author Topic: Fast ratio arms + 440 headers  (Read 2935 times)

Offline dave73chally

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Fast ratio arms + 440 headers
« on: January 11, 2016 - 08:13:38 AM »
Ok, I've read a bunch on here about the firm feel fast ratio arms and header fitment. Tried not to post this topic as it's discussed pretty widely but I keep coming across conflicting posts.

I have a 440, what headers WILL fit? I've read that TTI 2", hooker 5115 and hedman's will fit, then at the same time I've read posts where people say the same won't fit. What is it? Feedback from people who have a working setup on their car right now would be awesome....
73 Challenger
512 / 4spd / Hotchkis & QA1 Suspension




Offline brads70

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Re: Fast ratio arms + 440 headers
« Reply #1 on: January 11, 2016 - 08:26:19 AM »
I have headmans but still had to very slightly dimple the tube as the grease fitting was hitting.
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline dave73chally

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Re: Fast ratio arms + 440 headers
« Reply #2 on: January 11, 2016 - 08:34:31 AM »
I have headmans but still had to very slightly dimple the tube as the grease fitting was hitting.

What size and part #?
73 Challenger
512 / 4spd / Hotchkis & QA1 Suspension

Offline WildJones

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Re: Fast ratio arms + 440 headers
« Reply #3 on: January 11, 2016 - 03:16:37 PM »
I've posted this elsewhere, but when I called TTI and spoke to the guy who designed the 2" 440 headers, he claimed that they are routed differently than all the other smaller sizes and that this would leave plenty of clearance for fast ratio arms. I went with a Borgeson box, so I can't confirm this information.
Mike
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1970 Cuda

Offline dave73chally

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Re: Fast ratio arms + 440 headers
« Reply #4 on: January 11, 2016 - 03:32:25 PM »
I've posted this elsewhere, but when I called TTI and spoke to the guy who designed the 2" 440 headers, he claimed that they are routed differently than all the other smaller sizes and that this would leave plenty of clearance for fast ratio arms. I went with a Borgeson box, so I can't confirm this information.

Yea I read your thread where you mentioned this, but haven't since seen anyone who is actually running this combo...
73 Challenger
512 / 4spd / Hotchkis & QA1 Suspension

Offline HP_Cuda

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Re: Fast ratio arms + 440 headers
« Reply #5 on: January 11, 2016 - 04:00:39 PM »

If you look at the footnotes for the 2" TTI headers it says it will not work with Fastratio arms.
1970 Cuda Clone 440 4 speed - sublime green
1970 Cuda 383 4 speed - yellow - SOLD

Offline brads70

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Re: Fast ratio arms + 440 headers
« Reply #6 on: January 11, 2016 - 05:40:29 PM »
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline WildJones

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Re: Fast ratio arms + 440 headers
« Reply #7 on: January 13, 2016 - 03:29:14 PM »
If you look at the footnotes for the 2" TTI headers it says it will not work with Fastratio arms.
62-66 B-body applications:  Headers will not clear Firm Feel fast ratio pitman & idler arm.

Looks like thats true only on B bodies
Mike
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1970 Cuda

Offline HP_Cuda

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Re: Fast ratio arms + 440 headers
« Reply #8 on: January 14, 2016 - 02:07:33 AM »

Uhh no, I can tell you for a fact it will not work on Ebodies either cause I called them up several times and got the same answer. The longer fast ratio arms will hit the header and unless they have changed their manufacturing process (which I doubt) then it's still a big problem.

Give them a call!

This is also posted:

Due to the numerous engine configurations and suspension combinations, TTi cannot ensure headers and exhaust to fit all combinations, however, we have done our best to accommodate both factory and aftermarket component combinations.  e.g. Engine blocks, cylinder heads, starters, valve covers, etc.
« Last Edit: January 14, 2016 - 02:16:07 AM by HP_Cuda »
1970 Cuda Clone 440 4 speed - sublime green
1970 Cuda 383 4 speed - yellow - SOLD

Offline dodj

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Re: Fast ratio arms + 440 headers
« Reply #9 on: January 14, 2016 - 12:00:44 PM »
Below is from the Firm Feel site regarding their fast ratio arms.

Headers that DON'T fit:

TTI: B-body '62-'65 W/Big Block 2"

TTI:B & E W/big block 1 3/4" (hits IDLER arm)
« Last Edit: January 15, 2016 - 04:56:23 PM by dodj »
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline HP_Cuda

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Re: Fast ratio arms + 440 headers
« Reply #10 on: January 14, 2016 - 04:19:57 PM »

Thanks Dodj

I thought it was still the case, otherwise I would have loved to buy a set of TTI headers.
1970 Cuda Clone 440 4 speed - sublime green
1970 Cuda 383 4 speed - yellow - SOLD

Offline dave73chally

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Re: Fast ratio arms + 440 headers
« Reply #11 on: January 14, 2016 - 08:15:21 PM »
So much conflicting info it makes me hesitant to buy anything. So far the least amount of issues I've heard of are hedman? I haven't heard of anyone running 2" tti with the fast ratios, if they did I'd probably buy them. But without a definite, 1k is too much to be the guinea pig
73 Challenger
512 / 4spd / Hotchkis & QA1 Suspension

Offline WildJones

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Re: Fast ratio arms + 440 headers
« Reply #12 on: January 15, 2016 - 01:28:00 AM »
So much conflicting info it makes me hesitant to buy anything. So far the least amount of issues I've heard of are hedman? I haven't heard of anyone running 2" tti with the fast ratios, if they did I'd probably buy them. But without a definite, 1k is too much to be the guinea pig
I read of 2 people who did. Not a large population size, I know. Having owned a set of Hedman's for the 383 in my car, I won't be going that route again. They hung so low on the car and would bang on speed bumps unless I went diagonally over them, and even then they sometimes rubbed.

I think you mentioned that you are going for handling? If so, you will probably end up lowering your car, so my 2 cents is try to find a pair that tucks up nicely. I havent mounted the TTI yet, but I hear they are supposed to hug the bottom of the car quite well so that's why I chose them. I was going to buy the fast ratio arms, but I wasn't happy with the feel of my stock steering box which is a low miles box (afaik) so I decided to give the Borgeson box a shot.

Mike
95682
1970 Cuda

Offline dodj

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Re: Fast ratio arms + 440 headers
« Reply #13 on: January 15, 2016 - 05:02:50 PM »
I have Hedman 78038 Elite ceramic coated headers on my 440. I don't have fast ratio arms. They installed effortlessly and clear everything. No denting required, although after seeing the video soundcontrol posted up I may just throw in a few whacks to pick up a couple HP. lol.
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
Good friends don't let friends do stupid things. ........alone.

Offline jordan

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Re: Fast ratio arms + 440 headers
« Reply #14 on: January 17, 2016 - 03:58:05 PM »
It seems we all think that we need to change the headers to fit the pitman and idler arms.  What if a long ratio idler and pitman arms were made with different angles that hang them down lower in the rear to clear the headers.  It will also help with clearing oil pans.  Engine blocks can sit on pads without being shimmed.  Results in lower center of gravity.  We have all been messing around getting clearances of everything right based on the fact we need to clear the steering links.  Redesign a steering link!!  Is this impossible?  People make tubular control arms.  How about tubular (or something strong) pitman and idler arms?  Suspension gurus here should educate us all as to why or why not this is possible or impossilbe.  Probably some influence on bump steer.  Could it make bump steer better instead of worse?  If this product was on the market right now, I would have it on my car alredy, as Im sure ALOT of us would.  Somebody can make some $$ of this idea.  Just send me a working long idler and pitman arm please.   
"Don't brake until you see God!"