Alright im in the process of doing H/C/I on my 03 GT and need to know if I am going to have an issue with valve clearance on my heads. I have Ported and Polished PI Heads, Stage 2 Anderson Blower Cams, Anderson Valve Springs, Ferrea Intake Valves on the heads are 1.84 and the exhaust is 1.45. I need to know if I am going to have clearance issues with my block. I have a stock block with stock pistons.....

 

more then likely you will have PTV clearance issues. I had no problem with my stage 2's until I got into the high RPM's just once, you could hear the valves hit the piston.

So I would recommend you put valve reliefs in.

Ferrera is not a cheap valve.

 

Hey, i'm just curious, did you run that time in your sig with just the bolt ons listed and Nitto dr's?