In 1974, John Wadman (the president of the Canada-based import company TVR North America) began a project to replace the Triumph 2.5 L engine in a yellow 2500M with a Ford 302 cu in Windsor V8.
Wadman handled the engineering of the conversion, which involved the use of different engine mounts, radiator, and springs.
The Ford V8 was mated to a BorgWarner T-4 gearbox with a rear differential from the Chevrolet Corvette, and the resultant "5000M" was shown at the 1975 Toronto International Auto Show.

Following the 1975 fire that damaged the TVR factory in Blackpool, TVR NA ordered and pre-paid six cars from the manufacturer.
This gesture helped to secure future support from TVR for Wadman's V8 conversions: the factory eventually supplied five M-series coupes without engines or transmissions, specifically for the purpose of V8 installations.
TVR NA also converted three cars that were originally equipped with the Ford Essex V6, but that arrived from the factory with cracks in the cylinder block.
In 1978, the factory built a car (painted white with a brown stripe) that was designated "5000M"; this was also shipped to Canada for a V8 installation.
Since 1980, six Taimars have been converted to the Ford V8 as well.
In 1974, John Wadman (the president of the Canada-based import company TVR North America) began a project to replace the Triumph 2.5 L engine in a yellow 2500M with a Ford 302 cu in Windsor V8. Wadman handled the engineering of the conversion, which involved the use of different engine mounts, radiator, and springs. The Ford V8 was mated to a BorgWarner T-4 gearbox with a rear differential from the Chevrolet Corvette, and the resultant "5000M" was shown at the 1975 Toronto International Auto Show.
Following the 1975 fire that damaged the TVR factory in Blackpool, TVR NA ordered and pre-paid six cars from the manufacturer. This gesture helped to secure future support from TVR for Wadman's V8 conversions: the factory eventually supplied five M-series coupes without engines or transmissions, specifically for the purpose of V8 installations. TVR NA also converted three cars that were originally equipped with the Ford Essex V6, but that arrived from the factory with cracks in the cylinder block. In 1978, the factory built a car (painted white with a brown stripe) that was designated "5000M"; this was also shipped to Canada for a V8 installation. Since 1980, six Taimars have been converted to the Ford V8 as well.
TVR M series