The 10 biggest engines British manufacturers put in their cars

British manufacturers have long lived under the motto “bigger means more power”. As a result, giant motors found homes in British cars. The famous Rolls-Royce company has a great interest in equipping its cars with the largest engines. The list spans a century of premium vehicles.
British luxury dominates the largest class of engines with the exception of two distinguished racing cars. We take an in-depth look at the ten biggest engines British manufacturers have ever built in their cars. No matter their size, they have backed some of the most iconic models in British history.
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10 Napier Railton: 23.9 liters, 12 cylinders

The Napier-Railton Race Car was, without a doubt, the largest engine ever in a British car. With a staggering 23.9 liters, the configured W12 engine was capable of 572 horsepower.

Amazingly, Napier-Railton still holds the lap record of the Brooklands Raceway. The W12 engine powering the Napier-Railton was a compact version of the Napier Lion aircraft engine. No matter how crazy this car was, it had one of the largest engines a British manufacturer had ever used in their sports car.

9 Lister Storm: 7.0L V12

Lister Storm was already a storm coming at you at full speed. As a certified car, Leicester made only four Storms, three of which survived. But under the hood sat the largest V12 engine used in a production car since WWII!

The V12 engine that powers Lister Storm was Jaguar’s 7.0-liter unit used in motorsports. It could hit 540 horsepower, go from 0 to 60 in 4.1 seconds, and was considered the fastest car for most of the 1990s and early 2000s.

8 Aston Martin One 77: 7.3L V12

Only 77 of these beauties were available, as the name suggests. The Aston Martin One-77 has a secret 78 demo, the One-77, but that’s not important. What matters is the massive 7.3 liter V12 that powers the very Aston Martin.

The engine is an AM Cosworth V12 with 750 hp. It was so powerful that Aston Martin claimed it was the most powerful naturally aspirated V12 engine in the world upon its unveiling. While more powerful engines have appeared since then, the 7.3-liter V12 in the One-77 propelled it to 220 mph!
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7 Rolls-Royce Phantom 2: 7.7L Inline-6

Rolls-Roye is known for its luxury. In the 1920s, Rolls demonstrated that luxury with its elegant vehicles that produced 40 and 50 horsepower. Then the Phantom 2 hit British roads in 1933 with a 7.7-liter inline-six that could generate 50 hp.

Rolls-Royce has produced only 1,281 Phantom IIs. However, it helped set the standard for forward-thinking, thoughtful design with upgraded components that the company marketed to a stylish upper class.

6 Rolls-Royce Phantom 3: 7.3L V12.1

The last Phantom before WWII and the last British V12 for nearly 60 years was the Phantom III 7.3L V12. The Phantom 3 hit the roads in 1936, and unlike last year’s 40/50 horsepower Phantom, the Phantom III put out 120 horsepower.

Although the Phantom III has good power thanks to its large V12 engine, it also has a lot of weight, limiting top speed to 87 mph and from 0 to 60 in 16.8 seconds. Only 727 Phantom 3s rolled off the line, due in part to World War II. However, the Phantom 3 has an iconic V12 engine that represents Britain’s history.
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5 Bentley 8L: 8.0L Inline-Set

Before Bentley became the property of Rolls-Royce, the British company produced the 8-liter car. With a name like that, a great engine is clearly the engine of this beast, and it did. The engine was a massive 8-liter in six that produced 217 horsepower.

The massive 8L inline-six engine was ahead of its time, using components such as overhead camshafts, four valves per cylinder, and dual spark ignition. It’s rode the biggest rolling chassis in a Bentley and can hit 125 mph.

4 Rolls-Royce Silver Shadow: 6.75L V8

Silver Shadow and later Silver Shadow II constitute the brand’s largest operating model. It was produced between 1965 and 1980 and featured one of the largest V8 engines a British manufacturer had ever put into the car.

The V8 that powers the Rolls-Royce Silver Shadow is a 6.75 liter V8 that was Britain’s most popular V8. It carried the L410 engine code and powered many Bentleys and Rolls, including the Phantom VI, Bentley Eight, and Continental R.
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3 Jensen Interceptor: 7.2 liter big block V8

Jensen is best known for using the name Interceptor for two models. The latest version came with an American secret – a Chrysler 440 Big Block V8. The engine running on the 1971 Jensen Interceptor was a 440 with three two-cylinder carburetors with a total output of 330 horsepower.

Unfortunately, Jensen dropped all three 440 carburetors in 1972. The 1971 would forever hold the title as the most powerful car Jensen ever made. The 440 Big Block powered the Interceptor to a top speed of 133 mph and 0-60 in 7.3 seconds.

2 Rolls-Royce Silver Surf: 5.4L V12.1

Rolls-Royce loves to put big engines in its cars, and that trend continued with the Silver Seraph. Silver Seraph used a 5.4-liter V12 and was the first time Rolls-Royce had returned to a 12-cylinder engine since the Phantom 3.

The V12 Silver Seraph engine produced 322 horsepower. These Rolls were handcrafted in the UK and were an attempt to claim the title of ‘Best Car in the World’. There are only 1,570 of these beautiful silver seraphim, but they are creative nonetheless.

1 Aston Martin DB7 V12 Vantage: 5.9L V12

The Aston Martin DB7 is a modern classic, and the V12 Vantage has boosted performance. This more effective model has proven to be much more popular than the hexagonal version. Aston Martin used a V12 for the DB7, and it managed to get 420 horsepower out of the 5.9-liter unit.

The DB7 V12 Vantage comes paired with two transmission options – either a six-speed manual transmission or a five-speed automatic transmission. The manual’s top speed is rated at 186 mph, while the automatic was much slower at 165 mph.


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