I've had 1635 gaskets on a Dart Big m 540 with Dart Pro 1 heads that were leaking in the back corners. The valve covers are not bent (they are made of thick aluminum), the sealing surface of the head is smooth and clean. Used them with ARP studs and stainless steel locknuts and solved the problem.
π§ FEL-PRO VS 50561 R Valve Cover Gasket Set: Superior Quality and Durability for Optimal Engine Performance
9 Review
5W-40FS A3/B4
24 Review
RKX Vacuum Reseal Rebuild Gasket Replacement Parts
9 Review
π§ FEL-PRO OS 34308 R Oil Pan Gasket Set: High-quality, Leak-proof Solution for Optimal Engine Performance
9 Review