Author Topic: Power differance  (Read 2375 times)

Barry_R

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Re: Power differance
« Reply #2 on: March 19, 2016, 08:58:34 PM »
Not yet really.  I have done a bunch of similar engines with one head or the other - but not done a head swap on the same engine.  From what I can tell it seems like an honest 30 HP gain.  I really need to make a straight swap on the dyno - but the customer usually kinda needs his engine and I don't have the time to stop...

69shakar

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Power differance
« Reply #1 on: March 18, 2016, 08:08:24 PM »
Hi Barry, have you done a comparison with the felony heads vs edelbrock? Say on a 445 with all things identical except for the heads.