Are headers that much better ? Let’s see !
How much horsepower are headers worth over exhaust manifolds ? Today we dyno test cheap ram horn exhaust manifolds vs headers on a small block Chevy. The engine is an average Joe engine that you would most likely find in an older street car or street legal hot rod. If you looking for big boost and 1000 horsepower this video is not for you. Just a little naturally aspirated vortec headed small block Chevy. Typical easy DIY engine combination. ** UPDATE 4/1/2026 *** Concerning the exhaust manifolds. In the video I said they were 2 inch outlets, not sure why I said that, they are 2-1/2. Concerning carburetor re-jetting. It was NOT re-jetted for each test. Surprisingly the AFR stayed pretty consistent through out the tests. I thought for sure manifolds to headers would need a re-jet.
Your Headers Are A Waste Of Money!
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