View Full Version : Ls1 Hot Cam 317 milling


RL350SS
05-09-2012, 08:12 AM
I'm doing a lq4 build and I wanna bump the compression up by milling the 317 heads. How much can I mill the heads with an Ls1 hot cam Z06 springs stock valves rods. And does anyone know the part number of thinner head gaskets I can use