This head was built for a personal project and never used. I started with the 12H1326 which is the best of the MGB heads. All new valves and unrated dual springs. The intake valve seats were enlarged to allow for the use of a factory 1973 MGB big valve 1.625 VS the original 1.562. The head has a 5 angle valve job to accommodate better flow. 2 angles are cut on the valve and 3 on the seats. The exhaust seats are hardened so you can run unleaded. The head was professionally ported and polished to increase flow. This head with work on any pre 18v car. Since these head…