Original Beatles drummer Pete Best — best known for being replaced by Ringo Starr — believes the Fab Four wouldn’t have missed a beat if he had not been booted all those years ago.

“I still think it would have been The Beatles and I still think they would have been playing the same music and I still think the sound would have been very, very, very similar,” Best, 81, told The Post from his home in Liverpool.

“To this day I still don’t know why” he was dismissed, Best added.

Best — the Beatles’ drummer from 1960-1962 — is headlining a fantasy rock camp in Manhattan next week for some extra scratch.

Campers pay $6,000 for the privilege of jamming with him.

Best was dismissed just before the Liverpool lads achieved worldwide fame, and hasn’t spoken to his former bandmates since 1962.

“Some of the stories that came out. You scratched your head and wondered. Was I actually in that band for two years? Was I friends with them? Because it just didn’t make sense,” said Best, who admitted to having “many sleepless nights” since then.

Best has heard and read all sorts of theories as to what got him Beatle booted, including ‘hairstyles to being non-communicative to being a lousy drummer, jealousy. It goes on and on and on,’ he said. .

“There are more conspiracy theories about my dismissal than I could even remember,” he chuckled. “I laugh a little bit because of the fact that so much water has gone under the bridge since then.”

Starr, 83, — who is worth at least $350 million — has admitted there was chaos when Best’s exit was announced. The fellow Liverpool lad had built up an impressive fanbase — made up of mostly young women charmed by Best’s atomic drumming and good looks.

“There were riots!” Starr said, according to the Daily Express. “Pete had a big following, but I had been known for years in Liverpool, so I had quite a following, too.”

It hasn’t all been a hard day’s night for Best, who received “seven figures” for his work with the Beatles after the release of their 1995 compilation of their early recordings on “Anthology 1.”

“Life’s been good. And regardless of what happened, it was a hell of a learning curve for me at a very young age. It made me suddenly realize you’ve got to become a man of the world,” he said.

Opined Rock ‘n’ Roll Fantasy camp founder David Fischof: “Pete Best was the spark that ignited The Beatles ‘ engine, a crucial beat in the symphony of their early days.”