I have a 92 lude with the h23a1 that puts out about 160bhp stock. this is according to a couple of different spec web sites. i know the h22 head is a popular mod for the h23a1 but i read that the h23a4 from the 97-01 generation puts out about 190bhp. i am assuming that the block is the same size-2.3 litre- but i'm wondering if the head from an h23a4 can be fitted to an h23a1 block without special fabrication. thanks for any info.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by walkerklondyke2000 &raquo;</TD></TR><TR><TD CLASS="quote">i'm wondering if the head from an h23a4 can be fitted to an h23a1 block without special fabrication.</TD></TR></TABLE>

Sources point to yes...

 

97-01 uses an H22A4

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by InvaderTrax &raquo;</TD></TR><TR><TD CLASS="quote">97-01 uses an H22A4</TD></TR></TABLE>

thats what i thought too.. theres a h23a4???

 

hmm, maybe i read it wrong. this makes sense though. so, i guess my question should be, will a 97-01 h22a4 head (is this a vtec ?) fit snugly onto my '92 h23a1 block? or, should i just stick with a 92-96 vtec head? what kind of computer issues might be posed by either option?

 

https://honda-tech.com/zerothread?id=510617