Thats probably the Aussie Holden Grey motor. Its similar to the Chevy Stovebolt engines made here between 1937-1962.
Most definately not. I cut my teeth on greys, and the red one in the pic is physically a bit bigger also.
Here are 2 pics of a Holden "grey". Made up to 1963.
I am searching for a Bedford pic, but nothing on the intake side found yet.
Thanks everyone for your comments so far.
regards,Rod