Help to identifying engine type

Quote:

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Originally Posted by Lost Landy

If it has an oil filter under the inlet manifold then it is with out a doubt a later 2lt with the full flow oil filter.
The 2lt siamese has a by-pass oil filtration system on the LH side of the engine bolted to the block just in front of the starter motor,
It has 2 small oil feed lines ne entry the other is a return.
Hope that info helps

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Yes I was going to mention that too. Cartridge oil filter is definately the later spread bore engine.

When did they change? my 52 (Aug51 Build) by these descriptions is a spread bore, yet I always thought it was a siamese??