Hi to any large motorhome/bus owners who have built or changed the engine.  We are looking to repower the rollingstone with a higher powered motor as we have a 160hp 6 cyl diesel which is very slow on the hills.  we are looking at a Cummins engine and want to know if there are any regulations regarding changing engines in Queensland. 

any help would be appreciated.

cheer debs and graeme

Is it the motor thats the problem or your gearing and diff ratios

I like going up the mountains it gives me a chance to enjoy the scenery...

Check with local registration authority ? They should have engineers who check this work. It's mainly to check engine mounts etc are done right .

Hth   http://www.tmr.qld.gov.au/safety/vehicle-standards-and-modifications/vehicle-standards/vehicle-standards-instructions.aspx