The strongman broke two world records last month at the Entertainment Park in Bankstown: most cars pulled by an individual (16 vehicles) and most cars pulled by an individual (teeth only) with five or more vehicles.

Since his failed attempt to break a world record in November last year, Mr Conley-Magnusson has raised more than $50,000 for Hyundai Help for Kids which goes directly to Little Wings, Ronald McDonald House and Sydney Children's Hospital who all work together to help care for critically ill and injured children.

Some of his "crazy" challenges have included pulling a bulldozer, a garbage truck, two buses tied together and even a 220-tonne ship.

"I know, I'm a little crazy but it's for an outstanding cause and a lot of these feats are in fact things that hadn't ever been done in Australia before so it's been a lot of fun and a lot of trial and error," he said.

"When I was a child my left kidney ruptured and I underwent long hospital stays between ages four and seven.

"With the support of community organisations, I was able to pull through. Now, I want to give back that best way I know how."

He has sights next on pulling a plane or train.