Another way is to see if it has an air flow meter, if it has one then it is a C16XE!

C16XE = 109 bhp
X16XE = 106 bhp

C16XE has an black plastic inlet manifold and NO EGR valve

X16XE has an alloy inlet manifold and HAS a EGR valve

Both engines were used in GSi's and the later X16XE engines were used in sport 1.6's

C16XE produces its maximum torque @ 500rpm LOWER than the X16XE. (I THINK :P)

:boggle:

also is there a way to tell if its a c16xe by the ports, thought one of the c or x had oval and the other different. is there any markings on say the head that you can tell from?

ok cheers:thumbs: great help, looks like its a x16 then or has the x16 inlet as its alloy

[Edited on 18-04-2006 by bieransri]

c16 were all plastic, x16 were alloy. don't think there's a performance difference, but they sound different. both pretty restrictive anyhow.

early c16xe engines pre ecotec were black plastic
the later ones were metal "the x16xe ecotec"

btt, need to know this asap need to decide wether to buy the negine or not

corsa gsi c16xe inlet manifolds were plastic wernt they, or were some metal aswell? is there a performance difference or any difference at all?:boggle: