Thanks @Terry Parker

I had previously described the static display engine as:

– c/n 892 – missing name plate (fitted with ADC Cirrus III Heads  is this a Cirrus II “mod 3?”- or is it a Cirrus III?) – The Aeroplane Collection – Hooton Park
(It is recorded apparently as a Cirrus 2, C/N 892, donated via the Shuttleworth Collection in April 1965)

Based in the 3158 stamped on the engine mount moulding on the crankcase, I think its clearly not c/n “892”.

I can still not resolve if its a Cirrus II with Cirrus III Heads, or simply a Cirrus III?, but if its serial is 3158 (rather than 315 with a spurrolous 8 near by), then I think it would need to be a Cirrus III for the c/n number to be up at that quantity?

I therefore propose to revise my record as:

“Previously recorded as Cirrus mk II c/n 892 but missing its name plate, it is fitted with ADC Cirrus III Heads (Is this a Cirrus II “mod 3?”- or is it a Cirrus III?) and has the number 3158 stamped on the front port engine mount moulding of the crankcase. As that is the typical location of the engine construction number on other examples, then at this stage it would seem this is c/n 3158 not c/n 892.
(The high c/n number may support the proposition that it is a Cirrus III not a Cirrus II?)”

Regards

Mark Pilkington