In 1963 Sutch and his manager, Reginald Calvert, took over Shivering Sands Army Fort, a Maunsell Fort off Southend, and in 1964 started Radio Sutch, intending to compete with other pirate radio stations such as Radio Caroline. Broadcasts consisted of music and Mandy Rice-Davies reading Lady Chatterley's Lover. Sutch tired of the station, and sold it to Calvert, after which it was renamed Radio City, and lasted until 1967. In 1966 Calvert was shot dead by Oliver Smedley over a financial dispute. Smedley was acquitted on grounds of self-defence. About this time Ritchie Blackmore left the band. Roger Warwick left to set up an R&B big band for Freddie Mack.
In the 1960s Sutch stood in parliamentary elections, often as representative of the National Teenage Party. His first was in 1963, when he contested the by-election in Stratford-upon-Avon caused by the resignation of John Profumo. He gained 208 votes. His next was at the 1966 general election when he stood in Harold Wilson's Huyton constituency. Here he received 585 votes.