del sols also came with 1.6 sohc motors, im pretty sure its the same frame as a civic, and i agree doing a h22 swap is a bitch but probably more reliable then an ls/vtec....unless you build it right which is really expensive. prelude motors are cheap, like 2300 + 600 for the mount kit. i would go h22, it would make as much or more power stock as the ls/vtec would