Motor racing legend Peter Brock will be farewelled at a state funeral in Melbourne.

A 1,100-strong congregation, including the cream of Australia's racing fraternity, will pack St Paul's Anglican Cathedral, in the city centre, for the service which starts at 11am (AEST).

Thousands of motor racing fans are also expected to line the streets around the cathedral to pay their respects to one of the country's most recognisable sporting heroes.

Brock's brother Lewis and daughter Alexandra will address the congregation on behalf of the family.

The family's local federal MP, Liberal Fran Bailey, will represent Prime Minister John Howard at the funeral.

A lone didgeridoo will play during the service while close friend Aurora Kurth will sing a Brock favourite, a John Denver song yet to be revealed.

"Dad had a lot to do with the Aboriginal community both here and up in the Northern Territory," Alexandra Brock said on Monday.

"He had one he used to always play for us, so this will mean a lot to him."

Motoring personality Neil Crompton will deliver a eulogy on behalf of one of Brock's close friends Alan Gow, a former partner in Brock Racing Ltd, and now administrator of touring car racing in Britain. He is in England and unable to attend.

Brock's former de facto wife Bev Brock and his partner Julie Bamford will both attend but neither will play a role in the funeral.

A troupe of didgeridoo players will then farewell the 61-year-old Holden legend as his coffin is carried from St Paul's to a hearse bearing the original BROCKY number plates.

The ceremony will be broadcast live and commercial free by the Nine and Seven networks, Sky News Australia and the ABC from 11am and will be aired on giant screens across Melbourne's Federation Square.

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