Originally posted by drift
you dont "need" the oil squirters. it's merely a safety precaution. second, the H22 squirters fit in with no machining. why do people keep thinking the H23 block is physically different than the H22 block? they're the same block. if you had experience with this swap, you'd know this.
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h23a1 and h22a1 are different blocks
the h22a/1 is factory "sleeved" (if you want to call it that)
with FRM.
its basically silica impregnated alluminum
the h23a1 is not FRM
the h23a1 crank is literally "flimsy" compared to an h22a1
especially on the #2 connecting rod journal.
that is one major difference not mentioning the engine internals
h22a1 also has different cooling lines on back of block as well as thermo housing.
the fact is that the h22a is one of the easiest and most affordable swaps you can do, and regardless of whether or not you say the oil squirters are for safety only...you dont know more than the honda engineers when it comes to these engines, the squirters are necessary because of the extreme temperatures the pistons are experiencing.
its about gaining .1 liter and losing 2000 rpm's of revable and power producing stroke.
~boomer