Improve 6 Cylinder Engine

Q: Is there anything I can do to improve my 6 cylinder engine?

A: Yes, just about anything you can do with the 8 cylinder, can be done with the 6. Parts my be a little harder to find, but ads in the back of any Chevy magazine is best place to start. The most basic things are upgrading the intake and exhaust. A K&N air filter as well as freer flowing intake tubing can do alot. On the later models, you might want to try drilling holes in the water shields under the air filters (about five 1/4 inch holes). This will allow much more air into the motor. As for the exhaust, Edelbrock and Dynomax make some excellent free flowing systems for the V6s. And Products for Performance makes a freer flowing replacement catalytic converter.

For the spark, try the Crane HI-2000 ignition discharge unit and the Crane PS91 coil. Also use 8mm helicoil plug wires from MSD and Bosch platinum spark plugs.

You can even swap the cam. Competition Cams makes the CompuCam 2000 which is "computer freindly". Try something with .432 intake and exhaust lifts. In combination with that, use Competition Cams 1.6 roller rockers. All this allows for better breathing, so you might want to have the intake manifold ported. Also port and polish the heads.

Finally, you can go with forged pistons, chrome moly rings, Federal Mogul bearings, a remanufactured crank. This will be plenty strong to handle a nice nitrous set up from NOS.