Moreover, the measurement of minimum intake diameter of the cylinder head is 1.94″. If you are wondering about the height, both of the piston rings are 1.56″ tall. Among them, one piston ring features a compression ratio of 3.9″ to 0.622″. Here, the 2 piston rings come with a bore of 4″ with a displacement of 350 cubic inches. Knowing the size specs is also important because the same cam model has several variations. Regarding the lobe center-line specs, its intake valve is 105 degrees, and the exhaust valve is 110 degrees. Here, the intake and exhaust valves feature a duration of 218 seconds with 0.5 RPM each.Īgain, the lift capacity of both intake and exhaust valves is 0.457 inches, with a total duration of 268 seconds. In the Chevy 350 engine, you can see two main parts a hydraulic camshaft, and a hydraulic lifter. Now, let’s see the stock Chevy 350 cam specs so that you can buy aftermarket parts matching the requirements. We saw it used in the Chevrolet Corvette, Chevrolet Caprice wagon and smaller mobile homes. GM released the popular Chevy 350 engine in 1967 which took over the market in a short time. Now, let’s see the cam size in a stock Chevy 350. Those should be the ideal specification of a camshaft of Stock Chevy 350. Plus the valve lift has to be between 0.479″ to 0.480″ approximately.Īdvertised duration of the camshaft has to be between 279°- 297° and duration at. 107-108 degree is the appropriate angle where the exhaust and intake lobes where most likely mess up. The exhaust and intake lobe’s angle should be set right to avoid choppiness when the vehicle is not moving. The ideal range of RPM for camshaft is around 2000-6500.

Because it is here the engine acquires the most horsepower. The most important thing to notice of a camshaft is it’s RPM operating range. The perfect one does not need to be the pricy one or have to have all the high-end features as well. What Are The Specs On A Stock 350 Cam?Ī perfect camshaft can increase the performance of the engine of its highest. If you are wondering about what size cam is in a stock Chevy 350, read the full article below. But practically the case is not like this. Many people think that the bigger the cam is, the better. When the valves open, gasoline enters into the cylinders. Suppose the engine of the car is the heart, then the camshaft is the veins of it – which supply the fuel.Ĭamshaft basically works by rotating and creating energy, that opens up the valves.

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