2.25 vs 2.5 engine

[bronsonarlo]

How do you tell the difference between a 5mb 2.25 petrol and 2.5 petrol?
Any physical differences in the block or head to distinguish them?

[SafeAirOne]

Any physical differences in the block or head to distinguish them?

Sure. The serial number, stamped in the block somewhere (different locations, depending on engine) will tell all.

The different engine serial number codes are all listed here (http://www.glencoyne.co.uk/engno.htm).

[scott]

the block of the 2.5 has diagnol raised ridges along the bottom

[bronsonarlo]

Thanks! Looks like it is an early defender 2.25.

[SafeAirOne]

Thanks! Looks like it is an early defender 2.25.


A 13H engine?

[yorker]

the block of the 2.5 has diagnol raised ridges along the bottom

Yeah but so do the 5 main bearing 2.25s...

[scott]

Yeah but so do the 5 main bearing 2.25s...

are they the same? will they take the same head and manifolds?

[bronsonarlo]

It is a 11H engine.