It's the same form factor as the H20-II.  The bore and stroke are both 
larger than an H20.  I was told that at a minimum the water pump housing is 
different.  I haven't seen it in person so I can't say how similar the 
engine is, but figured if someone wanted to look at it...
At 04:41 PM 8/9/2002 +1000, Marko Lahtinen wrote:
>Someone may correct me but I dont think a H25 is in
>the same group as the R16, H20, and H30 engines that
>all share the same bore and have interchangeable
>components.
>
>Marko
>64 1500 with R16
>
>
>http://digital.yahoo.com.au - Yahoo! Digital How To
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Adam Bradley
'70 Datsun 1600 Roadster SPL311-28181
'67 Datsun RL411 SSS sedan RL411-11321
'66 Datsun PL411 sedan PL411-022447
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