is the flywheel for 90 civic si 1.6 and DX 1.5 are the same?

I went to kragen and they told me its the same (205 Standard Honda Flywheel) but when i was searching for OEM parts on the interenet (like hondaautomotiveparts.com) dx have part nubmer 83439 or 83440 and si have 83441

Need advise please. We were tried to replace the clutch last night with new stock clutch but we were hearing grinding noise. Mechanic said that the flywheel might be in bad shape.