A man who admitted he attempted to pervert the cause of justice by falsely claiming he was behind the wheel of a car involved in a fatal crash has avoided a jail term.

Bruce William Culverwell, 49, initially told police he was the driver of car that collided with a motorbike in Bullsbrook in December last year, killing two people.

He admitted four hours later that another man was behind the wheel, and that he lied because he felt responsible for the deaths as he had asked his friend to drive.

Both men had been drinking and smoking cannabis.

In the District Court today, Culverwell was given an 18 month intensive supervision order and ordered to undergo counselling.