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H23 VTEC INFO

 
luderunner
Enthusiast
Posts: 552
Joined: 08/06
Posted: 01/17/07 05:11 AM

ok so if your curious or already have one but with problems i got what you want i got all this info from a friend on preludezone.com.. he has been running his setup for 4 years now without any trouble so .....

PARTS LIST
h22a head (complete as possible)
h22a thermostat housing
h22a water pipe and water pump
h22a lower crank gear
h22a head gasket, timing belt
h22a hydrolic tensioner, manual tensioner
h22a head bolts and spark plug wires
h22a intake manifold and fuel injectors
h22a exhaust header
h22a top timing belt cover
h22a piston oilers
h22a power steering bracket
h22a ECU if your ecu is not wired for vtec

you can use all the sensors from your h23 intake manifold just swap them over to the h22 intake manifold. you can also re use the h23 distributor it is the same as the h22. before you put your h22 head on the h23 block you have to find and remove the oil control plug on the block. run vtec power wire from vtec selenoid to your ecu if you harness is not prewired for it already like some 93 si preludes are!! run 2 wires from the vtec pressure switch also... one is grounded.. the other is run to the ecu. this also is already wired into some 93 si preludes!

after your done and everything is installed correctly you should be able to pull 7800 red line!! and the gains should be roughly 10-20 whp and 20-30 ft lbs torque!  keep in mind i havent built this yet this is what a friend in another forum told me how he built his.. if anyone does this before i do mine this summer post back how it turned out  

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hondasav
Enthusiast
Posts: 439
Joined: 09/06
Posted: 01/17/07 08:38 PM

that sounds pretty fun.. were do you find the h23 is that the non vtec.. or is it vtec..  

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luderunner
Enthusiast
Posts: 552
Joined: 08/06
Posted: 01/18/07 03:39 PM

the h23 block is non vtec found in the si prelude from 93-96 i think the 92 si still had the h22 or f series in it  

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hgreen_lude
New User
Posts: 6
Joined: 09/09
Posted: 09/07/09 07:11 PM

Have you done the swap yet?? how did it go??   Confused  

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hgreen_lude
New User
Posts: 6
Joined: 09/09
Posted: 09/07/09 07:12 PM

Thinking about doing it bc i have the h23 bottom end just need to find the VTEC h22 head  

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luderunner
Enthusiast
Posts: 552
Joined: 08/06
Posted: 02/08/10 08:43 PM

no i never built this frankenstein i went with the true h23 vtec swap instead of building one but still have the parts i sourced for the project and may put one together just to use the parts and sell it  

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MiguelGaytan
New User
Posts: 1
Joined: 11/11
Posted: 11/03/11 06:18 PM

92-96 prelude si came with the h23. h22 came out in the 94 model. I'm pretty sure. If not the latest was 93.  

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