360 Magnum Pictures
We hope to have time to do the heads this week. His SI valves showed up! 2.02/1.62. I don't know why they use such a big ex. valve in the Mag heads. SI is the company that supplies Hughes Mag Valves, but they are cheaper. We are using stock length, they have them in +.100, but I do not like the geometry when I have used them before. So with the stock length the vs installed height should come in around 1.65. He will be using a hyd roller cam. The springs will be Lunati #73949 which have 120# @ 1.65 and coil bind @.950. I can't remember the open pressure , but it was mid 300s at his cam lift.
We hope to have time to do the heads this week. His SI valves showed up! 2.02/1.62. I don't know why they use such a big ex. valve in the Mag heads. SI is the company that supplies Hughes Mag Valves, but they are cheaper. We are using stock length, they have them in +.100, but I do not like the geometry when I have used them before. So with the stock length the vs installed height should come in around 1.65. He will be using a hyd roller cam. The springs will be Lunati #73949 which have 120# @ 1.65 and coil bind @.950. I can't remember the open pressure , but it was mid 300s at his cam lift.
