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The thick discs have a better heat capacity and therefore better durability in demanding applications
bolts and washers
This process has occurred within many different seasons
Optional Upgrade to Ferrea Valves Available
JE Pro Seal-Athena Cooper Fire Ring Head Gasket For EJ25 (101.3mm Bore) Turbo Oiling The thick discs have aFor high horsepower applications, engine performance can be significantly improved by using these Cooper Ring gaskets that are supplied with INOX steel rings. This technology outperforms conventional fire ring solutions. Cooper Rings are oversize (also fits for oversize bores). Silicon based beading is applied on critical areas to improve sealing around all cooling water and oil passages. Gasket thickness is 1. 2mm . 047 and has a 101. 3 mm bore size
