BL

 The following item have not been proven to have been used in period.

The "A Plus" engine block is not allowed.

The block  came into production in 1980-81, it is easily identified by the extra webbing on the lower half of the engine block.

The distribuotor fixing is different to the earlier engine block.
The distributor fits directly into the block and secured by a single bolt through a "C" clamp.

The pictures below show the engine block and the extra webbing.