Stampings on head

[The Veg]

Following on the idea of my 'stampings on block' thread, here are the stampings on my head. Is there any decipherable meaning to them? It's just a Federal Stromberg head, so I don't expect anything exciting.

[rgh0]

On the rear face of the head there should also be a stamped number of format normally AANN which is some date or batch coding for the later heads that Lotus stamped on the heads when building the engines. This two letter and two number stamping appears to have started when Lotus brought the engine building in house around 1968. Earlier heads had the engine number stamped in the same location, some heads have nothing.

Some heads have the engine number stamped on the bottom face. Your head has a stamped number also on the bottom face and if you don't have a number on the rear face then this may be where Lotus put their stamped number for your head

The other cast numbers you showed on the bottom face of the head are Lotus and WM ( William Mills the foundry that cast them) part numbers and some other casting date or batch code that WM used when doing the casting

cheers
Rohan

[Barney]

Saw the title and thought I was on one of my Rugby pages.

[The Veg]

Saw the title and thought I was on one of my Rugby pages.