Cy’s new heat on Harvey

Manhattan District Attorney Cyrus Vance Jr. is so eager to send Harvey Weinstein to prison for life that he’s re-presenting the case to a grand jury so actress Annabella Sciorra can testify against the disgraced producer.

The grand jury heard evidence against Weinstein (above) this week, and is scheduled to vote on a new indictment on Aug. 26, sources told The Post Thursday.

The move came just weeks ahead of the scheduled Sept. 9 start of Weinstein’s sex-assault trial, which now could be delayed as a result.

In court papers, Assistant DA Joan Illuzzi-Orbon said prosecutors planned to obtain a new indictment against Weinstein that’s based in part on Sciorra’s claim that he raped her more than 25 years ago.

Weinstein can’t be charged in the alleged attack inside Sciorra’s Gramercy Park apartment due to the statute of limitations in effect at the time.

But testimony from the actress, best known for her role in “The Sopranos,” could be used to bolster two pending counts of predatory sexual assault against Weinstein, 67.

The charges are the most serious that he faces, and carry a maximum life sentence.

Legal experts said Vance’s strategy was highly unusual.

“I’ve never seen a prosecutor go back into the grand jury three weeks before trial,” said Daniel Bibb, who was a Manhattan prosecutor for two decades and has been a defense lawyer for 13 years.

“They desperately want this woman to testify, and it could indicate that they lack confidence in their case.”