LS= B18B1 non-vtec

GSR= B18C1 vtec w/dual path intake

Type R= B18C5 vtec

SE= B18B1 non-vtec

Automatic, B18B1 only. No C1 or C5 with automatic.

A C1 or C5 head will bolt up, but won't work on a B1 block without modifying oiling system. Login to read more.