How do I identify a 400 SBC?

How to Identify a Chevy 400 Small Block

  1. Open the hood and view the engine from the front on the passenger side.
  2. 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 year did the 400 small block Chevy come out?

1970
The largest version of the Generation I small-block was the 400 (6.6 liter). It was the only engine available with both the 4.125-inch bore and the 3.75-inch stroke crankshaft. It debuted in 1970 and was produced for 10 years.

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.

What car came with a 400 SBC?

What Did 400 Sbc Come In? It had long been accepted for use in Chevrolet and GMC full-size trucks, including 1/2-ton, 3/4-ton, 1-ton, and sometimes even larger duty trucks such as K5- Blazer trucks. Until the 1976 model year, it powered midsize A-Body and full-size B-Body passenger cars.

What did the Chevy 400 come in?

How much HP does a 400 small block have?

401 hp
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. We were underwhelmed.

What is an engine suffix code?

The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. The entire engine Code contains the assembly plant, month and day along with the engine suffix Code. For help go to engine Code help or engine decoding FAQ.

What year is Chevy engine?

How Do I Tell What Year My Chevy Engine Is? It is best to check the serial number for the block on the drivers side, rear, over the extended part of the deck surface that goes over the bell housing.In the serial number after the first two numbers are the engine’s date code.

How do you tell a 350 from a 400?

Re: how to tell a 350 from a 400 Look at the sides of the block – if they’re perfectly flat, it’s a 305 or 350. If it’s a 400, there will be small bulges around each cylinder, between 1/8″ and 1/4″ tall. Chevy only made 3 different casting numbers of 400 blocks – it’ll have to end in 817, 509 or 511.

How much HP can a 400 small block make?

With our low-compression, power-adder friendly 400-inch small-block easily exceeding 525 hp, it was time for some boost. And that’s where things start to get very interesting.