ok guys i searched the prelude forums and here and couldn't really come up with a good answer but, i picked up a blue top h23a vtec engine and am looking for a gasket set for it and have heard some h22 stuff would work and to not use ebay stuff but am not sure what to get. im on kinda a budget build here and cant afford honda gaskets and tas auto doesn't really have much. im sure my h23a is obdII model engine also it has a hydraulic tensioner set up, i also have a 92 h23 non vtec for parts with manual tensioner set up, and wasn't sure what everyone was running for a set-up as for the tensioner. input would be much appreciated thanks guys!!
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H23a vtec swap 91' coupe
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Hey guys. H23A vtec swap and timing belt was no different for me than obd2 h22a swap. Manual tensioner conversion works perfect. It was super tight for me though. Had to massage the belt for a bit before it would go on. Almost all the gaskets for the h23a vtec were the same as h22a for external portion of the engine. As far as I know with my experience and what I've read the only differences are in the main crank bearings and the crank/rods/pistons. Head gasket is the same part number even. my block and head are both stamped p13 so they are same casting as H22a. I bought a half decent gasket set from ebay that said it was oem quality or better and everything ive used from it so far worked great. I bought my timing belt and water pump from honda. Most of the H23A vtecs dont use many gaskets anyways. Most gaskets from the engine are made from factory from hondabond. (Gray stuff coming out from oil pan gasket area is actually factory they don't come with an actual oil pan gasket stock.)
You will need upper half of the intake manifold from an obd1 H22/H23 and the drivers side engine mount bracket. other than that follow all directions on obd2 h22a. and run a chipped and tuned ecu! P13 ecu runs like crap...
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