Rougharse Racing said:

If you replace the original engine with an engine that is broadly similar to the one originally fitted or offered as an alternative at the time then I suggest that you are well within the spirit of the regulations.

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I agree.
I've got a 72 Hillman Avenger GT (don't laugh) which has had a 1600 CC engine fitted in place of the original 1500 CC unit. The engines look identical, the only difference being the bore and stroke.
I did this swap in 89, 2 years before I took it off the road to restore it, which I am still planning on getting round to doing at some point.

I will be getting it MOTd though, at least when it first goes back on the road.

Nodge68 said:

I've got a 72 Hillman Avenger GT (don't laugh)

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brilliant cars

Rich.

Zed. said:

brilliant cars

Rich.

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Partners brother rallied one years ago...