It was harder than he thought.

A British strongman donned the mask of iconic Halloween villain Michael Myers in a bizarre strength stunt — where he rolled a 1.5-ton car with the tip of his penis.

Burly John Stephenson, 55, joked, “I’m always trying to gain an inch or two,” Metro UK reported.

Wild video showed the ex-kickboxer strapped to the front bumper of a Renault Megane coupe by his own personal stickshift — as he pulled the vehicle down an empty street in York, England, with no hands.

After the exhausting feat, Stephenson confessed it took a toll on his piston.

“To be fair, it hurt a little bit this time using the tip,” he told the outlet.

“It’s the most painful one I’ve done.”

Testing the strength of his man spear is nothing new for Stephenson, who once pulled a 2-ton car 164 feet, using only his testicles.

The display of schlong-gevity was for a good cause — to promote awareness for male victims of domestic abuse in coordination with the group ManKind Initiative.

“Like the character of Michael Myers, many victims feel forced to wear a mask — pretending everything is fine on the outside while carrying a crushing, agonizing weight alone on the inside,” Stephenson said, according to the publication.

“I put my body through this brutal, extreme physical ordeal to show these men that they are not invisible, they are not alone, and they don’t have to stay silent,” he added.

The strongman also warned any ding-a-lings interested in testing their own manhood to think twice.

“I’d encourage anyone thinking about doing it to not,” Stephenson urged. “Steer clear away from it.”