1) All motor wise, do what Bee aka 93h22aCX said, GET AN H22 HEAD.
2) The h23 IMO is one of the SHITTIEST motors honda ever made. They blow headgaskets, spin rod bearings, and they are OLD. Its like doing an LSVTEC. AN h23 bottom end was NEVER designed to go to 8000rpms, so what push it there? Doing an H23VTEC gives you the VTEC power, but if you cant rev it out reliably, WHATS THE POINT?

Personally, i would Purchase an H22 longblock from a JDM importer. Or look for one USED in GOOD SHAPE. i have bought FULL 98-00 H22 LONGBLOCKS for as cheap as $650. The h22 was designed to rev high, its got VTEC, there are TONS of upgrades availabie for it from rods, pistons, cams, intake manifolds, ETC. why be DIFFERENT, when you can make power so easily. why reinvent the wheel?

We have dynoed STOCK h22s that make 175whp. Stock header, stock intake, stock cams. I have never heard of ANY h23 making over 155whp STOCK.

AccordM3 has a MILDLY built h22 making 227whp. He has Type-S pistons, Skunk2 Stage2 cams an valvetrain, EuroR manifold, Eagle rods. thats it.

Goinfasterthanu has a STOCK Internals H22, with a DC header and an intake an exhaust that put down 193whp. STOCK CAMS, STOCK INTAKE MANIFOLD, STOCK BOTTOM END.

An h23, i wouldnt do shit to it, i woudlnt even boost it. not worth the money on such a crap ass motor LOL, sorry bee.

So, in closing, STAY ON TOPIC, if i read one more fucking time about the CB7 guys vs O-BOMB im banning people.

To the guy that posted this, get an H22 if you REALLY want to stay all motor. youll thank me an bee in the end