trying find out some info regarding valve springs for a sbc chevy have a cam that is 501/501 lift and 244/244@050 duration found some z/28 springs that are a good price but they are rated for 500 lift.can i use these? also had someone tell me to go to a 600 lift spring.seen a z/28 spring set rated at 550 lift also what could or should i run and be ok..
you will be fine i have ran that exact same combo for near 20 years. on a car that gets driven to the drag strip ran hard with nitrous and driven home. screw in studs are a must though
Find someone with a spring checker. Set em up at installed height, then check for coil bind at full lift. Then check to see how far from full lift IS coil bind.
They should work ok for you. When you take the old springs off you heads,line them up and compair how tall the old springs are. If they are the same height you are ok to go. If the exhaust springs are shorter than the intake springs,you have to look and see if they have rotators on the exhaust springs. If they do you need to replace them with a retainer just like your intake spring has. Also look at the spring pocket on the heads. The installed height should be the same on both the intake and the exhaust.
A drill press , a block of wood to spread the load and a bathrom scale will measure any valve spring. There is even a scale on some of the better drill presses to you wont need a ruler. But actually just put them on and run them .001 "extra is not going to bother anything. All ratings must and do have a fudge factor. Don
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