Are small block and big block Chevy distributors the same?

Are small block and big block Chevy distributors the same?
When it comes to Chevy distributors, there are some differences between small block and big block engines. The distributors for small block and big block Chevy engines are generally not the same and are not interchangeable.
Small block Chevy engines are physically smaller and have shorter strokes and smaller bores compared to big block Chevy engines. The distributors for small block engines typically go through the intake manifold, while the distributors for big block engines are rear-mounted and go through the timing cover.
It’s important to note that there are different lengths of distributors for big block engines as well. There are distributors for standard-deck (short) engines and distributors for tall-deck engines. These two types of distributors are not interchangeable, so it’s crucial to have the correct one for your specific engine.
In summary, small block and big block Chevy distributors are not the same and are designed for different engine types.

What year did GM switch to HEI distributor?

High energy ignition, also known as H.E.I., is an electronic ignition system designed by the Delco-Remy Division of General Motors. It was used on all GM vehicles, at least in the North American market, from 1975 through the mid-1980s.

How can I tell what type of distributor I have?

If you can get to, or remove your distributor, you should be able to see product numbers or visible markings on the outer casing. Failing that, a distributor can often be identified visually, so sending us details of the car and photos of the distributor should allow us to identify the exact model you need.

Are SBC and BBC distributor the same?

Distributors are interchangeable but the advance curves are tailored to different applications. But they will fit both the small blocks and the big blocks.

What is the largest factory small block Chevy?

The LS7 was the largest displacement small block ever at 427 cubic inches. And the LS9—well that took small block performance where no one ever thought possible.

Are 327 and 350 blocks the same?

The larger sized main journal diameters of the 1968 327 small-block, 2.450, are the exact size of the later 350 small-block. The difference between the two is the length of stroke on the crank, 3.250 for the 327 and 3.484 for the 350.

Are Chevy distributors interchangeable?

All chev V8 distributors are the same. Even SBC and BBC are interchangable. Except for the 348’s and 409’s.

Is a 454 a big block or small block?

Chevy production big-blocks range from 348-ci to 454-ci in passenger cars, but have also been offered in other displacements for different applications.

What is the difference between an HEI distributor and a regular distributor?

The HEI distributor is still an inductive-discharge ignition, but exchanges points for an electronic device called a module. Since this system produces more voltage and amperage output than a point-type ignition, it requires a larger-diameter cap to prevent voltage crossfire inside the distributor cap.

How can you tell the difference between BBC and SBC?

This is a small block Chevy. It’s a 350 cubic inch engine. It’s got a four inch bore. And this is their typical small-block engine that they they run been making this design engine since 1955.

What is the difference between a small block and a big block Chevy?

Big block engines have more metal and more or larger cylinders. They tend to produce more power and torque because of their weight. Small blocks are just that — small or smaller than big blocks. While small block engines still have metal and cylinders, they are typically smaller and fewer in number.