Street & Performance Headers- how much power?
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I bought a set of Street & Performance headers a while back when I planned on building a relatively tame engine. I am now entertaining the idea of going with the 402 short block from sdpc.
How much horsepower will the S&P headers allow for?
How much horsepower will the S&P headers allow for?
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I called S&P and the sales rep told me that they ran a their headers on a ls2 motor that produced 548 HP. There's a graph on their home page indicating that as well.
I wonder though, how much more power would have that motor produced had a better set of headers been put on. Similarly, at what point do the S&P headres start to restrict the HP gains of a motor?
Anyone have any idea?
Any advice is appreciated.
I wonder though, how much more power would have that motor produced had a better set of headers been put on. Similarly, at what point do the S&P headres start to restrict the HP gains of a motor?
Anyone have any idea?
Any advice is appreciated.
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The headers are shorties.. I ran them on my '69 LS1 car and made 380rwhp with just stage II heads and a 224/224 cam.
If you are making big power you should run mids or long tubes. I would think they would limit a big power motor. Stainless Works and ATS both make LS1 retrofit long tubes but they are pricey..
If you are making big power you should run mids or long tubes. I would think they would limit a big power motor. Stainless Works and ATS both make LS1 retrofit long tubes but they are pricey..