I don't think Nisse Hedlund had any input into the Albin/Monark/Lito/Husqvarna engine at that stage Hoony. He later developed his own engine
basedon the original Monark engine but that was after these bikes life. The history of Monark/Lito Husqvarna is a great yarn and an important part of motocross history that is often overlooked. It's good that something as rare as a Monark will be here in Australia along with (hopefully a sixties Husqvarna 4 stroke). Even though they are made up of mostly replica parts, the replicas themselves are as rare as shit due to the Manx Norton style costs involved. Here's a shot of Per-Arne's own Lito that is an ex works bike with similar history to the Lundin bike that Terry Good now owns.
Below:
Here's an extract from Works Bikes.com A total of 5 Monark/Albin bikes were built at the Varberg factory. These bikes were built for the Monark factory riders to compete in the 500cc World Championships and promote the Monark name throughout the world. No two bikes were the same. There was never any intent to sell these handmade works bikes and none were ever sold to the public. Nor were any replicas of these bikes made by Monark. Today there are many Monarks in circulation and all but the original works bikes that all are accounted for are fake Monark bikes. Most are represented as the real thing and most people have no idea whether they’re real or not. This is also true of Lito’s and early 4-stroke Husqvarnas. Although the Lito 500 was produced for sale (approx. 35 total), Husqvarna never sold a production 4-stroke in the late 50’s or early 60’s. There are many fake Litos and Husqvarnas in circulation from this early era. There has also been several fake 4-stroke Monarks, Litos and Husqvarnas for sale on ebay. If one of these bikes is ever presented to you for sale, it is most likely a fake. It is very rare that one of the original bikes comes on the market. There is nothing wrong with a replica as long as that's how it is represented. Do your homework.