Let me tell you, you do not want to do this on your own at home without professional knowledge or guidance. If you are racing with your Chevy, going for the biggest one won’t harm you, but if not, installing an aftermarket cam may affect your on-road performance and fuel economy, as the performance cams hurt low-rpm performance.Īnd the loud rumble might get you reported to the authorities. One thing I should’ve mentioned earlier, that is aftermarket cams are not meant for every other Stock 350 owner. THUMPR CAM 350 ON DYNO INSTALLShould You Install the Biggest Cam for Stock 350? Installing cam on worn-out springs is another hazard. If the lift is not adjusted accordingly, it can push the lobes continuously to harm the springs. As the aftermarket cams increase the fuel intake, more fuel is expected to burn to gain more acceleration.Īnother disadvantage of a bigger cam is the lift. The performance cams are not known to “harm” the engine in a general sense, but fuel economy is certainly affected, especially in lower RPMs. The noise could be a good or bad thing depending on the intended usage of your vehicle. The choppy idling sound earns the cool factor. It’s not unbearably loud though, it’s more like a nice rumbling engine sound, even better when idling. All the cars get louder after adding a cam. Yes, especially if it has a nice lope to it. To calculate cam overlap, Exhaust Closing Point + Intake Opening Point = Overlap is used. It’s expressed in the degree of rotation.Ī higher magnitude of overlap benefits from Scavenging Effects, but at a lower rpm, vacuum is produced in the engine and causes rough idle. What is Cam Overlap?Ĭam overlap is when intake and exhaust valves are opened together. You need higher torque to start the vehicle with heavy load. While high-speed performance will certainly increase, performance cams are detrimental to lower speeds. You’ll idle a little rougher, but the satisfying rumble of the engine is what some of us want. A performance camshaft – a bigger cam – can and does increase the horsepower of your stock 350 engine to generate more acceleration and torque. Why Use Performance Camshafts:Ĭamshafts are responsible for the duration of valve opening and fuel intake. If you are looking to increase your car’s performance, this cam is the best for you. This camshaft satisfies all the requirements of Stock 350 and is the biggest one you can fit. – The springs fit the vortex head without machine work. Several manufacturers claim to produce the best and biggest cam for Stock 350, but COMP Cams CL12-600-4 is the biggest and best cam for Stock Chevy 350 with: Check the specifications of your stock 350 Engine specifications before getting the biggest cam to delight it. – Lobe Separation Angle (LSA) is the distance between intake and exhaust lobes, choose your cam according to the specification provided with Stock 350.īefore throwing your hard-earned money and beloved Chevy in the wrong hands, ask these questions. A bigger cam usually means more duration. – Duration is the amount of time the valve is kept open or is lifted from the seat. – Lift is the distance that the valves are lifted from the seat or resting position. Basic Operating RPM is the value where the power is maximum. – Operating RPM of the camshaft should match the Operating RPM Range of your Stock 350. There are several variables other than choosing the biggest camshaft for your Stock 350. The camshaft is responsible for Horsepower, Torque, Idle Quality, and more.
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