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This is a very extensive procedure, on the front wheel drive versions of the 60 degree block, it is required to remove the engine from the car. A cam upgrade is one of the best choices for overall power. It can change the characteristics of the motor, by changing the power band. If you have the time and money, this is hard to beat. Make sure you choose the cam that is right for your application though, since a boosted car will want different cam specs than an NA setup. It is recommended to talk to a machine shop (if they are doing the work), or to the cam manufacturer before choosing a cam.
For those of you who are wondering exaclty what a camshaft does for extra horse power, ill try to explain it. The purpose of a camshaft in any car, is to determine when the intake and exhaust valves should be open, how much they should be opened, and for how long. Aftermarket camshafts usually open the valves more and for a longer period of time. For a good explanation, go here .
Computer controlled vehicles require a special kind of camshaft designed to produce more power, and still pass emissions. Keep this in mind when purchasing any Camshaft from any manufacturer.
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Part #
Description
Comp Cams 16-115-4 Works with stock computer & fuel injection. Very good for stock rebuild 16-232-4 Good power for 2 or 4 wheel drive S-10, S-15, or Blazer. Works well in mild towing applications. Smooth Idle 16-233-4 Good performance cam for 2.8L engine. Lope at idle with extremely good top end power Crane Cams Powermax 2020 Low and mid-range torque and HP, great choice for cars and 4x4 trucks, highway or off road. Works really great for trailer towing. Basic RPM 1000-4000 Powermax 2030 Mid and upper range torque and HP improver for cars, especially Camaros, S-10 pick-up's, Blazers, Jimmy's, etc., and all performance applications. Basic RPM 1500-4500 Powermax H-192/2667-2S-12 Smooth idle, daily usage, fuel economy, 1600-2200 cruise RPM, 7.75 to 8.75 compression ratio advised. Basic RPM 1000-4000 PowerMax H-260-2 Good idle, daily usage and off road, towing, economy, also mild turbocharged, 2200-3000 cruise RPM, 8.0 to 9.5 compression ratio advised. Basic RPM 1500-4500 PowerMax H-272-2 Good idle, daily usage and off road, towing, performance and fuel efficiency, increased compression ratio and gearing advised, 2600-3000 cruise RPM, 8.75 to 10.5 compression ratio advised. Basic RPM 2000-5000 PowerMax F-228/3067-2-12 Fair idle, daily performance usage, good low and mid-range torque and HP, 3200-3600 cruise RPM, 9.5 to 10.75 compression ratio advised. Basic RPM 2500-6000 PowerMax F-248/3334-2-12 Rough idle, performance usage, good mid and upper RPM torque and HP, 3800-4200 cruise RPM, 10.5 to 12.0 compression ratio advised. Basic RPM 3800-7200 Crower 03040 MILEAGE COMPU-PRO / PERFORMANCE LEVEL 1 - Enhances mileage and torque in stock engines. RPM Power Range: Idle to 3500 / Redline: 4500 plus. 03002 MILEAGE BEAST / PERFORMANCE LEVEL 2 - Perfect combination power/mileage with extended rpm