4 into 1 step or Try-Y headers for a stocker

[Mark Ugrich]

Originally Posted by SSDiv6

Two of the best header guys are retired: Mark Leelchook and Elston.
Your options are RFE or Danny Davis.
Others are either using the PipeMax software or filling the form from Burns Stainless, following their recommendation and building their own.

Do you have contact information for RFE by any chance?

[Billy Nees]

Ya know, the last person who asked me a question like this I answered; "how do you have s&x with your wife?".
I don't know what your combo is so it's kinda hard to answer the question.
If it's a SBC, I would say go for the tri-Y if the person building them knows what they're doing.

[SSDiv6]

Originally Posted by Mark Ugrich

Do you have contact information for RFE by any chance?

Greg Holman
REF Unlimited
2179 Northern Ave
Kingman, AZ 86409
(928) 692-0111

[Alan Roehrich]

The difference between 4 into 1 headers (no question, at least one step is necessary) with good merge collectors, and 4-2-1 or "tri-y" headers is found in what you can do with the camshaft. The two types of headers require entirely different camshafts. You literally develop your camshaft to compliment the headers, and they're to radically different camshaft programs. Choose a header style that you like, but make sure you have access to someone who can help you make the right camshaft choices.


For every person you find who says that a tri-y is fastest, you'll find at least one person with a fast car who says the 4 into 1 is as fast or faster.


Good luck. Open your wallet.

[SSDiv6]

Originally Posted by Alan Roehrich

The difference between 4 into 1 headers (no question, at least one step is necessary) with good merge collectors, and 4-2-1 or "tri-y" headers is found in what you can do with the camshaft. The two types of headers require entirely different camshafts. You literally develop your camshaft to compliment the headers, and they're to radically different camshaft programs. Choose a header style that you like, but make sure you have access to someone who can help you make the right camshaft choices.

For every person you find who says that a tri-y is fastest, you'll find at least one person with a fast car who says the 4 into 1 is as fast or faster.

Good luck. Open your wallet.

As Alan has stated, the camshaft has a lot to do with the gain in performance. In addition, you also have to take into consideration that having an OEM intake such as a dual plane, along with the firing order, has also an effect on the use of a particular header design.