Did Chevy ever make a 400 big block?
Yes, Chevrolet did produce a 400 cubic inch (6.6 liter) big block V8 engine. The 400 big block was a popular and powerful engine option offered by Chevy in the 1970s and early 1980s.
The Chevrolet 400 Big Block Engine
The Chevrolet 400 big block V8 was first introduced in 1970 as a larger displacement option to the popular 396 and 427 big block engines. The 400 big block shared the same basic engine block and architecture as the other big block V8s, but with a larger 4.00-inch bore and 3.75-inch stroke.
The 400 big block was offered in a variety of horsepower and torque ratings, depending on the specific engine model and vehicle application. Horsepower ranged from around 260 hp to 300 hp, while torque output was typically between 390 lb-ft and 415 lb-ft.
The 400 big block was used in a number of Chevrolet models during its production run, including the Chevelle, Impala, Caprice, Monte Carlo, and Corvette. It was a popular choice for performance-oriented drivers who wanted the power and torque of a big block V8.
The End of the 400 Big Block
Production of the Chevrolet 400 big block V8 ended in the early 1980s as automakers began downsizing engines in response to stricter emissions regulations and the need for improved fuel economy. The 400 big block was eventually replaced by smaller displacement V8 engines like the 350 and 305 cubic inch options.p>
While the 400 big block is no longer in production, it remains a popular choice among classic car enthusiasts and hot rodders who appreciate its power and performance characteristics. Many aftermarket companies also offer rebuilt and modified 400 big block engines for those looking to add some extra muscle to their vintage Chevrolet vehicles.
What cars had a 409 engine?
The 409 remained on the Chevy options sheet through 1965, after which it was replaced by the next-generation 396 Big Block. As it stands, you'll regularly still find the early '60s Impala SS with an original 409 in it.
What is the difference between a small-block 400 and a big block 400?
The Results. Overall, the big-block produced 41 more horsepower and 22 lb-ft more torque than the small-block, and we achieved the big-block's horsepower peak 200 rpm below that of the smallblock. The small-block made more torque from 3,100 to 3,700 rpm, but we made no pulls below 3,100 rpm with the big-block.
Was the Pontiac 400 a big block or small block?
Unusual for a major automaker, Pontiac did not have the customary "small-block" and "big-block" engine families common to other GM divisions, Ford, and Chrysler.
What's the difference between a 350 and a 400 Chevy transmission?
They are completely different transmissions. The Turbo 400 is larger, longer, and heavier than the Turbo 350 and was designed to live behind higher-torque applications such as big-blocks. That doesn't mean the Turbo 350 is weak in comparison.
Is a Chevy 350 and 400 the same block?
The 400 small block was a light duty expanded version of the 350 that I wouldn't even consider buying. The bores were so big that they had to siamese the cylinders together on the outside. The stroke was too long to fit inside that block properly. The workaround was to use a rod that was too short to work well.
How much horsepower does a Chevy 400 have?
In case you missed the story, the best power numbers were gained with a set of GM Performance Parts Vortec heads supplied by Scoggin-Dickey, and even then the 400 small block Chevy managed only 401 hp and 458 lb-ft of torque.
What is the biggest Chevy Big Block?
Chevrolet's Biggest Big-Block Engine
- 1004 hp. Horsepower*
- 876 lb. -ft. Torque*
- 7,000. Max Rec RPM.
- 632 cu. in. ( 10.4L) Displacement.
Did Chevy make a 400 big block?
there is a 400 big block Chevrolet that displaces 402 cubic inches that is based off the 396 but was marketed as the 396 in chevelles and as the 400 turbo jet in large cars again I think in 1971 .
How much HP does a 400 big block have?
With a relatively low 8.2:1 compression ratio, the final 400 V8 version produced a mere 195 horsepower and 305 lb-ft of torque. Earlier takes on the same design delivered more performance in a smaller package.
What did the 572 big block come in?
The 572 is officially offered by Chevrolet for the 2022 model year COPO Camaro.
