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Old 01-10-2013, 07:07 PM   #4
bilfman
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Join Date: Dec 2011
Location: Regina, SK, Canada
Posts: 622
Re: 79 GMC engine rebuild

Quote:
Originally Posted by N2TRUX View Post
Welcome to the forum Burnsracing94. You need to offer more info on your truck and its intended purpose. Haveing too much cam cam be just as bad as not enough if its not designed to perform in the intended power range.

You mention heads from your racecar, but don't offer any specs. Just like too much cam, you can have too much valve or ports that are flowed for a higher rpm than you might run in your truck.

If you have or had a race car you already know this. Help us to help you with more details.
Agreed. More information is required to do this right. There so many factors to do this right, but the good thing it is not hard. First you need to decide what you use the vehicle for. In town cruising, pulling, racing, hauling, 4 wheeling, highway cruising, horsepower, torque etc...

Once you settle on a primary use, tranny, tire size and gear ration come into play. Figure out your primary RPM operating range and give this information to a cam company or a reputable engine builder and you can use their knowledge to assist with a cam choice.

Knowing what you want your vehicle to 'be' is the most important aspect of cam choice.
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1971 GMC 3/4 Ton 4X4
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