Lastly, the ratio of rockers for the arm is 1.5. The intake and exhaust valves have a lift capacity of 0.457 inches with a total duration of 268 seconds.įor the lobe center-line specs, the intake valve and exhaust engine valves are 105 and 110 degrees respectively. The intake duration and exhaust duration are at 218 seconds and 0.5rpmn each. A hydraulic camshaft and a hydraulic lifter. There are two main parts in the Chevy 350 current engine. It became popular in markets shortly after its production. The popular Chevy 350 was released by GM more than 50 years ago. 050″ should stay between 227 and 257 degrees. 480 should stay between 279 – 297 degrees while the duration at.

The valve lift should be approximately set between. The intake and the exhaust lobe’s angle should be properly set to prevent choppiness when the car isn’t moving.ġ07-108 degrees is the most appropriate degree lobes to be set to prevent the camshaft from messing up. The ideal range for a camshaft RPM is between 2000-6500. Instead, the RPM operating range is the most important factor in considering a perfect camshaft. A high-ended features camshaft does not define it too. A costly camshaft does not define a perfect camshaft. What are the Specs of a Stock Cam 350?Ī perfect camshaft will allow for improved engine performance. You will find answers to these and many more as you read through the article. The energy produced by the rotation of the camshaft opens up the valves and causes gasoline to enter the cylinders.ĭoes the size of a cam determine its efficiency? Big or small, what size of the camshaft is better? Size has nothing to do with how better a Cam will be. The camshaft supplies fuel to the car and gives way for the expulsion of exhaust fumes. Torque is the main factor, proboly both cams make around 360 hp.The heart of a car is the engine while the camshaft can be likened to the veins that carry blood to the heart.

What kind of power differance would the Isky be over the GM. It is going in my 80 Camaro, (396) TH350(trans-go shift kit),3000 TCI stall 3.73's, 255-60-15 tires out back, 3' exhaust w/H-pipe and 40 series delta race flows, 2' primary headers( I know its to big of a system for a stock engine, but it looks Bad-Ass).

I am looking for driveability and reliability out of this enging. I was thinking of swaping that for a Isky 270 mega, but was wondering if a GM performance cam be better. Now it has a Lunati cam that is almost the same specs as the Eddie Torker, just 114 centerline.

77 chevy 350 270 magnum cam