EM2abe

What are the advantages of having the hybrid swap as opposed to the regular K20 or K24 swap?

anIrishman-es2-

with a k24 block you get beefier internals and higher torque than with a k20 and then when you put a k20a2 head on it you get true vtec rather than crap *** ivtec. all of this information can be found in the faqs or on google in much greater detail though. if you are thinking of doing a swap its pretty much the best way to go for a 7th gen civic.

anIrishman-es2-

btw if youre really in LA. invest in a good alarm system before you mod your car... just sayin. used to live there lol.

toyomatt84

iTrader: (1)

Well, all K-series engines have i-VTEC. i-VTEC is a reference to the adjusting cam gear that responds to engine load.

(Cam gear on the right is the source of i-VTEC in a K-series engine)


Now, the issue between K20A3 and K20A2 engines that you're referring to is just a lack of an exhaust cam valve in the K20A3 head. Essentially, K20A3's do not have VTEC engagement on the exhaust cam, where as K20A2's have both intake and exhaust VTEC engagement.


For a very simple run-down on pros/cons of engine series:
K20A3: Lower compression, intake-only VTEC
K20A2: Medium compression, intake & exhaust VTEC

K24A1 and K24A4: Lower compression, intake & exhaust VTEC
K24A2: Medium compression, intake & exhaust VTEC

K20A: Higher compression, intake & exhaust VTEC


For "Frankenstein/Hybrid" builds, people tend to use the K20 heads to allow a larger volume of air into the engines to promote higher HP figures. But, due to the increase in air volume, they tend to lose some low to mid range torque for the increase of higher end hp. I could go on for days, but there is simply far more information out there with simple searching then I can cover in one post. I'd suggest doing some research, before asking more questions.