ID Code Engine Unleaded Head stamp
LC 1.6 Standard M, MM, N or NN
LS 1.6 Long stroke
(Similar to the 2.0 engine block) M, MM, N or NN
RE 1.8 S or SS
NE 2.0 Carburettor L, P, PP, R or RR
NR / N4 /205 2.0 Fuel injection L, P, PP, R or RR
It is to be found stamped into the head adjacent to one of the spark plugs.
Tis either 1 or 4, can't remember which one at the mo
Will have a look in the Sierra manual when I get a chance
