Obviously, these valve-control-related issues, associated with insufficient valvespring pressure, are the reason why camshaft manufacturers offer valvespring upgrades. The obvious answer might seem to ...
Starting with an increase in displacement, the LS3 checks in at 6.2 liters (376 ci) versus the previous 6.0L LS2 combination. This comes courtesy of an increase in bore from 4.00 inches (in the LS2) ...