bought first car 1985 316 but not sure of engine

[charlston250]

hi new to the forum and i just bought a 1985 bmw e30 316, not 316i, but i suspect the engine may be out of a e21 315 because the documents say 1573cc not 1760cc and i know this may seem weird but portugal gets lots of weird engined cars like 320is etc, how can i confirm which one it is? i can post photos and ive got all engine numbers.

[pacerpete]

Welcome to the Zone. The engine size should be stamped on the block next to the engine number.

[charlston250]

thank you so much for answering but im sorry im a real noob, where is that? i have a feeling its the 1760cc because i took the water pump off today and checked against the parts i saw online but that could be wrong

[andyp]

I think you will find a 316 is a 1600cc and a 316i is a 1800cc

[pacerpete]

I think you will find a 316 is a 1600cc and a 316i is a 1800cc

The opposite actually . Engine number for M10 engines is on a 'boss' on the rear edge of the block just above the starter motor.

[Rav335uk]

I think you will find a 316 is a 1600cc and a 316i is a 1800cc

Not entirely true.
My 316 is a 1.8 carb.

[charlston250]

thank you guys so much, much appreciated

[andyp]

o well who ever told me that is a -anker then