How to Build a High Performance Small Block Chevy

Getting more power out of a small block Chevy engine is one of the best ways to get more oomph out of the vehicle. As it happens, small block Chevy performance stuff is some of the most inexpensive items in the entire car aftermarket. A few upgrades and that small block Chevy is ready to run faster!

Things You'll Need

• Complete set of automotive tools
• Engine building manual
• Engine stand

Instructions

1. Install a performance fuel delivery system. This includes both the intake manifold and the carburetor on the engine side of things, and a high-flow fuel pump is a great way to get all that gas to them. Two very popular companies for intake manifolds are Edelbrock and Weiand, with Edelbrock and Holley ruling the carburetor world.

2. Install a high-flow exhaust system. This includes purchasing headers and a good-flowing muffler. Headers are available for small block Chevy applications from a number of companies, but be sure to be vehicle-specific when ordering, because each header is shaped different depending on the application. Two popular choices for the muffler are Flowmaster and Dynomax, but a plethora of options are out there.

3. Install high-flowing heads. The heads on an engine are what allow it to "breathe" at the upper RPM levels, and so getting high-flow units greatly increases power. Two popular companies for high performance, aluminum heads are Edelbrock and Dart, but several companies offer them for the small block Chevy. Also, the introduction of aluminum cylinder heads greatly reduces weight, which better uses the engine's power.

4. Install a performance camshaft. The camshaft is what controls the lifters and opens both the intake and exhaust valves inside the cylinder heads. The longer they remain open per cycle, the more power is able to be made. Therefore, the lobes on a performance cam allow for more duration, which greatly increases power.

Tips & Warnings

• A street engine likes the lower RPM range, while a full race engine should be built for high RPMs.