Media playback is not supported on this device
Thanks to a superb defensive display, Britain led 34-25 at half-time and were then always in control in Worcester, stretching their lead after the break.
Terry Bywater top-scored with 29 points and was named Most Valuable Player, while Ian Sagar added 17.
"These are exciting times for this team," Bywater told BBC Sport.
"We have some new talented players coming through combined with veterans like myself and Simon Munn and we play with pride and passion.
"I think our start surprised Turkey. They beat us in last year's World Championship quarter-finals in Korea so revenge is sweet."
Earlier, the GB women secured their fifth European bronze medal in a row after an easy 69-39 win over France.
The home side, who had lost 56-55 to Paralympic champions Germany in Friday's semi-finals, were dominant throughout with Helen Freeman and Jordanna Bartlett leading the scoring on 10 points apiece.
Both GB teams had already secured their places at next year's Rio Paralympics thanks to their performances at the tournament.

Rangers avoided relegation by finishing 10th but the club was later charged for failing to implement Haveron's touchline ban against Dungannnon.
It could have resulted in Carrick losing three points and being relegated but the Irish FA decided not to apply any sanction following a hearing.
Haveron replaced Michael Hughes as Rangers boss in September 2013.
"The Board of Carrick Rangers FC can announce that we have accepted the resignation of manager Gary Haveron and assistant manager Steven Mills," said the club on Monday.
"Following discussions between the Board and the management team, we were unable to establish a mutual agreement on the best way forward for the club."
He guided Carrick to Championship success in his first full season and with it a return to top-flight football.
Last month's dramatic 2-1 victory over Ballinamallard United on the final day of the season moved Carrick from the bottom to 10th and safety.
Their Premiership status was threatened by the touchline charge but the IFA Disciplinary opted to "exercise its discretion" in not imposing a sanction.
Warrenpoint Town, who finished bottom but just a point behind Carrick, have appealed the IFA ruling.

Gustavo Silva Da Cruz was among three swimmers seen struggling in the water around noon on Sunday at Camber Sands.
He was discovered on the beach at 18:20 BST and declared dead at the scene. Police said he had been visiting family in Croydon, south London.
The others - a man and his teenage son - are critical but stable in hospital.
The pair, who are aged 35 and 17 and from London, were not connected to Mr Silva Da Cruz.
They were given CPR by paramedics and airlifted to hospital.
Live updates after swimmer's body discovered
A Go Fund Me website appeal has been set up to raise funds to return Mr Silva Da Cruz's body to Brazil.
It says he was in the UK to visit his father and family, who are originally from Brazil.
He was raised in Brazil by his grandparents and mother.
The website said: "The family was enjoying the hot weather in the company of friends at Camber Sands beach where Gustavo drowned.
"The young man was dragged by the strong wind which started suddenly and could not swim back to the beach."
More than 1,000 people have signed a petition calling for lifeguards to be located at Camber Sands.
Rother District Council said it was saddened by the incident and its thoughts were with the families and friends of those affected.
It said the beach was "particularly busy with around 25,000 visitors" on Sunday.
"As is usual for the summer season, beach patrols were on site to advise people of potential dangers, reunite lost children and deal with incidents on the beach.
"The district council's coastal officer and officers from Sussex Police were also on the beach."
A spokesman said: "Our officers are trained to deal with incidents on the shore and acted quickly and professionally in what was an extremely distressing situation; performing CPR on two of the men and alerting HM Coastguard and the RNLI who carried out the search for the missing man."
Great Britain men's wheelchair basketball team clinched a third consecutive European title after beating Turkey 87-66 in the final.
[NEXT_CONCEPT]
Gary Haveron has resigned as manager of Premiership side Carrick Rangers after a controversial end to the season.
[NEXT_CONCEPT]
A man who died after two others were pulled from the sea off East Sussex has been identified as a 19-year-old Brazilian national.