theschwag420

ok so i have an jdm h23... just put it in... i was wanting to put a h22 head on it and i was wondering what parts i woul dneed to do this besides the head of course... will i need a new wiring harness or just the ecu? will i be able to use my old intake manifold or anything? please someone just let me no whats up i really appreciate it.... thanks

Matta1

how to: H23VTEC, H23 VTEC, H23/VTEC (search friendly) - Honda-Tech

You should read around, because it's a lot of work!

indylude18

Also, consider that the H22 head/ H23 block motor has been proven pretty unreliable. You might want to look into it more before you move forward with your build.

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Bluetop H23a Vtec Swapped NHBP '99 Base