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morepowerjoe · 10-11-2025, 01:39 AM

Yeah I don't know about the piston to valve clearance, what I was referring to was the bearings, piston to wall, and ring gaps. When I had my heads milled thirty thousands, I had aftermarket pistons with big valve reliefs. I would check with Andrew at GPI on the ptv clearance for that cam, I'm sure have had thousands of those combos.

10-11-2025, 01:39 AM	#6
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,230	Yeah I don't know about the piston to valve clearance, what I was referring to was the bearings, piston to wall, and ring gaps. When I had my heads milled thirty thousands, I had aftermarket pistons with big valve reliefs. I would check with Andrew at GPI on the ptv clearance for that cam, I'm sure have had thousands of those combos. __________________ DSS Pistons, Eagle ESP L19 Rods, ARP Head and Main Studs, TSP PRC CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Racing Lifters, CHE Trunnions, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP Longtubes, ZL1 Fuel Pump, Mishimoto Radiator and Oil Cooler, 3600 Circle D Converter, Tru Cool 40k Tranny Cooler, Fluid Dynamics Balancer, EBC 3GD Rotors with EBC Bluestuff NDX Pads, Bilstein B6 Shocks / Struts with Eibach ZL1 Drop Springs Build Thread https://www.camaro5.com/forums/showthread.php?t=609817