Has anyone actually measured the TTI 2" a body headers? It would be nice to have a basic schematic / layout ? Has anyone actually went from 2" headers to the 2 1/8" or 2 1/4" step headers did they make a difference.
Big Block A Body Headers
- Thread starter SMCARNUT
- Start date
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72Dart6pack
Harder Better Faster Stronger.
75 to 90 hp gain. 
famous bob
mopar misfit
that's a hell of a claim for an 1/8" on headers ! I talked to a guy that had the fastest car at the mopar meet 2 yrs ago, he had just switched to step headers on a fast 64 dodge , and he loved them, I forgot how muck diff. he said tho. Don`t thinkit was that much. His engine was big / big too.75 to 90 hp gain.
72Dart6pack
Harder Better Faster Stronger.
Yeah your right let's lower it to 45 Hp.
mopar65
Well-Known Member
Here is a old Hot Rod Magazine article they did on Diffrent size headers on a 600 HP 440. But they only tested to the 2-1/8 stepped TTI header.
Dyno Test Torque Headers - Mopar Muscle Magazine
Dyno Test Torque Headers - Mopar Muscle Magazine
mopar65 thanks for the information that gives me a lot of information to help me make my decision. I will most likely go with the 2"-2 1/8" step headers as I think they will be my best overall choice.
I would say the gains are to be had if ur over 700 hp. Kim
famous bob
mopar misfit
Any body want a set of used 2" TTI headers that are chrome w/ wrap on them -----LOL
Not worth the trouble of switching. If buying new , maybe a very little > 1 h.p. up top
73440abody
Well-Known Member
Interested in the headers, message sent
Please describe big / big. Inquirin minds wanna know. LOL
I would call that accurate!
famous bob
mopar misfit
around 600c.i. if I remember right. The guy was really happy w/ them too. As u know when a guy gets that far along, decent gains get harder to come by !
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