Luis Perez-Sala has indicated HRT wants to keep its Cosworth engines for the 2013 season.
It emerged recently that, with the independent British engine supplier losing key clients Williams and Caterham recently, Cosworth might not develop a V6 engine for the all-new 2014 regulations.
Citing paddock speculation, the media reports even suggested the viability of Cosworth staying in F1 for the final V8 season next year is in doubt.
The engine maker’s last remaining F1 customers are backmarkers HRT and Marussia.
HRT team boss Perez-Sala suggested the Spanish team wanted to maintain stability for 2013.
Asked by El Confidencial if the team will have a new engine supplier next year, he answered: "For next year, although it is not finalised, the idea is to keep what we have.
"As a team we have made a big change this year and what we need is to consolidate and improve on what we have. So we cannot be changing too much when in 2014 there is such an important transformation.
"We expect that the coming (2013) campaign will be a continuation," added Sala.
He also suggested that Spanish driver Pedro de la Rosa is a vital player in the HRT project going forwards.
When asked if he can imagine HRT without the experienced former McLaren test driver on board, Perez-Sala answered: "So far, no ... I can not imagine it!"