granted the N/A engines don't see the oil temps you turbo guys do, but this was my driver's side valvetrain at 135k miles when i had to replace a valve cover gasket. synthetic from day 1 with mostly 6-8k mile oil changes. autocross, rallycross, track days, mountain roads...plenty of severe service. i tried everything from 0W-30 up to 5W-40 and settled on 0W-40 by the end before it was hit and totaled.
i think you can achieve the same results, just keep the OCI's shorter due to the engine's higher specific output. i would also stress to be sure you are careful in your oil filter choice, some filters may not have the proper bypass PSI which for EJ's is higher than most. i always just used OEM filters from the dealer.