heres a pic. If you want to buy it I will get it magnafluxed first.

I have been told it is an "J" series head. I found it attached to an MGB engine. It bolts up to the MG engine but the combustion chambers and vavles are undersized for the 1798 BMC motor. This will go cheaply or to the dump.

Here is a link o a picture I took. I was looking to take out the valves and saw that it has double valve springs, if that means anything.

I Own a couple of MGB's and I was tearing down a engine that was in a parts car I have and the cylinder head is not from a MG, but from a Datsun/Nissan. It looks identical to a "B" series MG motor except it has smaller combustion chambers and valves. I have attempted to research where this head came from but have come up empty. It appears to be in very good shape. I want to find out if it has any value before I put in money in it getting it maginfluxed. The markings on it say "Nissan Japan", "B34", and "0728C". It is a 4 cylinder OHV configuration. Funny enough it bolts right up to the 1798 MG engine. The rocker shaft even oils at the same spot and the thermostat, heater valve, and temp sensor are located at the same spot. Any help would greatly be appreciated. If pics would help let me know and I will try to post them.