its a s15 spec r motor, i painted the valve cover blue it was originally black. Yeah they made spec s s15s that came with NA srs maybe thats what you have.

hey what sr do u have in ur s14?. i know its a s15 but what kind? i have the same looking engine but its a n/a blue just like urs. cant seem to find any info on it. ive tried google. lol