I bought these RC 550's locally, and the guy selling them had a B-series CRX. Whether he ever ran these injectors on his motor, I don't know.

Anyways, they're mint, and the model number is PL8-550 (peak and hold, I already wired the resistors).

Anyone running these on a B-series motor? I tried fitting them on my current SOHC setup, but for some reason they seemed to sit too "tall" compared to the DSM 450's I have in there.

Are these injectors for another type of motor, or will they fit?

 

Those will fit.
RC has a kit with smaller gromets where the injectors sit on the intake manifold. It also includes bigger fuel rail spacers to compensate for the longer injectors.