It Still Runs is the go-to destination for all things cars. From motors to radiators and everything in between, we've got you covered.

x

How to Get More HP Out of My 4.3 V6

by Larry Amon

A 4.3-liter V6 engine is one with a decent amount of horsepower but is not necessarily a high-end performance engine. These engines come standard on a large variety of cars, including many GM cars. Everybody wants to get more horsepower out of their engine, though, and even a little bit sometimes feels like a lot. While you can get a new exhaust system or new heads for your engine to make a big difference, those changes can be timely and expensive. There are also simple, cheap ways to increase horsepower for your 4.3 V6.

Step 1

Replace your air filter. The air filter gets dirty over time and restricts the flow into the engine. The engine needs air as much as it needs gas. Switching to a reusable air filter can add more horsepower.

Step 2

Install a performance chip or reprogram your current computer. You can replace your car's ROM chip with a performance chip that will boost horsepower. You may also be able to connect a programmer to the computer and reprogram it for better performance.

Change you gas to a higher octane. This is a very inexpensive way that you may get a bit extra power. The highest you can get is usually around 93 to 94 octane. You may also see improvements by using a better lubricant. In some cars changing to synthetic oil may produce more horsepower.

Tip

  • Have a mechanic replace your fuel filters if they are dirty.

Items you will need

  • ROM chip
  • Gasoline
  • Air filter

More Articles