August 24, 2003i have a recently rebuilt 350 gmc engine (TBI) and was considering getting some more power i heard a camshaft is the trick, i would like something mild like an RV cam. But i really don`t know what im getting into, Will this cam do anything without comprimising say idling, or gas milage. Do i also have to change lifters? Is it an easy install? (motor stays where it is)Thanks
August 24, 2003and yes, you really should replace the lifters when you replace the cam..
August 24, 2003If your motor is a Vortec then replacing the lifters is not necessary as they`re roller cams/lifters. If you have a reg. 350 with hydraulic cam/lifters then yes you have to replace the lifters.
August 25, 2003if you get the crane compucam or another mild cam, it will idle fine and in some cases help gas mileage. to swap the cam, you will need to pull all accessories off the front off the engine. then take off the balancer and timing cover. next you will need to pull off throttle body, intake, and valve covers. loosen the rocker arms and turn them sideways so you can pull the pushrods out. next pull out the lifters so the cam can slide out. you also need to take out the grill, radiator and ac condensor so the cam will have enough room to come out of the block. think i covered all the steps, not being a chevy man, but the procedure is about the same for all engines.
August 25, 2003Also, when you pick a cam you NEED to make sure it is computer compatible and DOES NOT make the engine idle rough. I reccomended the CraneComucam 2030 because it still gives a smooth idle, from what I`ve heard it gives a good boost of power, and its compatible with the stock computer in your truck. This winter I am building a tbi 350 with l-98 corvette heads, lt-1 cam, and a holley intake with the help of a guy over at fsc.com. It requires a custom computer chip.