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View Full Version : OEM plastic vs Aluminum Valve cover for MZR 2.0L



G ~ MINI
12-14-2022, 04:06 PM
I have been looking for a while to replace the OEM Plastic Valve cover
It was only available for Miata pre 2.0L applications. I have found the plastic to bleed oil when hot or exposed to higher oil pressure
because you cannot be tightened like a metal cover.

danST makes an Aluminum cover for the Duratec 2.0L = MX5 MZR 2.0L which is also in the Mazda 3 Gen 2 and will fit the 2.5L
https://danstengineering.co.uk/Ford-Duratec-Aluminium-Rocker-Cover-suits-all-VVT-variants-including-2-5