UnderdogWondering if anyone knows some things...
The new 2017+ engine puts out 4 more HP and has roller rockers on the cams. Is the additional power from the hardware change, or is it unrelated and just due to retuning the ECU? Or does the power come from more cam lift that is made possible by the roller rockers?
Assuming the roller hardware adds power, would it be best to swap the whole head? Or can just the rocker gear be swapped? Is the cam the same, or would it need to be swapped, too?
I'm not looking to do this anytime soon... but, if it's EASY, maybe next year. And easy and cheap 4hp is worth pursuing on this car!
With whole engines going for under $500 in salvage, a head should be dirt cheap.
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