Rule 94 Re: Engines In Modified Production

[Copperbottom]

Rule 94 for modified production states:" The engine block must be externally identifiable as that fitted to the original model or specified option and must remain in the same capacity class as the original car,or the manufacturers specified option for the model and engine.Modifications to all components is permitted."
If I read this correctly it means that engine blocks that weren't originally fitted to the model range are not allowed,so does it mean that mk1 and2 escorts can't use the later 205/200 blocked pinto/cosworth engine,astra mk1s can't use 2.0 engines of any type (8v/16v),peugeot 205/309s can't use mi16 engines,visas can't use 1905cc engines (8v/16v) etc, etc. All of these have different casting numbers to the original so are therefore NOT externally identifiable as being original.
If for example a Corsa had an X16xe block as standard you couldn't use an Z16xe in it's place (different block numbers).