according to this c 2.0 SEH is high output/supercharging version
http://totalcarlton.com/forums/index.php?topic=1490.msg16110#msg16110only way to tell is to compare engines,or ask breaker if cover has vauxhall parts number on it. mine is the SE engine and cover is in 4 parts so whippits part numbers should be right....just ask who ever has SEH engine to check the top cover is same part no as per whippits list.
It really is that simple .....

h.t.h