Hi there! I’ve been experiencing head-lift issues with my Evo IX. My block hasn’t been oring, and I don’t want to oring it. Currently, I’m using ARP L19 Headstuds paired with SCE Vulcan Cut Ring Gasket. I’m boosting 35 psi and using pumped gas. Could you recommend a recommended setup to prevent head-lift? My current bore is 86.5 mm, so the OEM gasket won’t fit.

 

Are you re-torquing the studs after a few heat cycles? I don't think the gasket is your issue. Its likely clamping force, flatness or tuning.

I have been running L19s with a stock gasket for years making 600whp.

 

I’ve only torque after 1 heat cycle. I’m planning on changing to CA625 stud.