From the factory 165 hp and 200hp. Depending on the year, in the 1970s 265 hp to 300 hp depending on how it was configured, 4 barrel, compression ratio ect.
What is the most powerful small-block v8?
The most powerful small block ever produced is the LS9 engine used in the current Corvette ZR1. It is rated at 638 horsepower, making it the most powerful engine ever produced by GM for a regular-production car. The lowest-output small block was the 1975-76 262 V-8 rated at 110 horsepower.
What did a 400 small-block come in?
The 400 saw extensive use in full-size Chevrolet and GMC trucks; K5 Blazer/Jimmy, 1/2-ton, 3/4-ton, 1-ton, and even larger 'medium duty' trucks had an option to be equipped with a 400. The engine was available in midsize A-Body and full-size B-Body passenger cars until the end of the 1976 model year.
What years did Chevy use the 400 small-block?
The 400 CID Chevy small block engine was produced from 1970 until 1980 and was the largest displacement engine made in that platform. It was intended as a low performance, high-torque engine primarily used in Chevy's heavier passenger cars and light-duty trucks.
What's the difference between a 400 small block and a 400 big block?
Though big-block engines are significantly larger than their small-block brethren, the true difference between these two is more about displacement, bore, and stroke than strictly size. Typically, big-block engines have displacements of greater than 400 cubic inches and small block engines have a smaller displacement.
How can I tell if my Chevy 400 is a small block?
- Open the hood and view the engine from the front on the passenger side.
- Look for the engine code. According to the Chevy-Camaro website, the code is located on a machined pad directly forward of the passenger-side cylinder head, on the front of the engine block.
What's the difference between a 350 and a 400 Chevy motor?
The Chevy 350 cubic inch engine has a 4-inch bore whereas a 400 cubic inch engine has a 4.125-inch bore. The 350 has a 3.48-inch stroke, and the 400 has a 3.75-inch stroke. This is how an engine is stroked—by lengthening the crankshaft stroke and shortening the rod by the same amount.
Did Chevrolet make a 400 big block?
If you mean Chevrolet, the answer is no. There was a 400 small block, and big blocks whose displacements were 409 (predecessor to the MK IV big blocks), 396, and 402.
How many horsepower is a 400 small block?
See all 12 photos Here's the 400 with the stock Vortec heads on the dyno at Westech. We retained the stock Vortec springs to break in the cam. With the stock Vortec heads, the low-compression 400 managed to make 376 hp and almost 450 lb-ft of torque.May 1, 2011