I have a JDM F20a1 in my 92 lude si (2.3l). My exhaust manifold is doing something funky, and instead of wasting time with it, I'm just going to opt out for headers, which isn't bad either. So far, parts from an H23 (such as the ps pump, alternator) have fit. I need to know what headers are going to fit my car? The F20a1 is from a 90-93 Accord si, but from what I've researched, the American to JDM specs look different. I JUST DON'T KNOW!
Problem is most people aren't familiar with that engine over here and aftermarket parts are generally geared towards h22 / h23.
I bet if you find the heads are the same, then yes, use a h22. I would suggest finding a template or just finding a cheapo junkyard h22 header (stock one) and seeing if that fits. Maybe find someone about to upgrade or take theirs off and ask them to draw you a template.
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