Our cnc porting program centers around the subaru ej25 v w and d series cylinder heads. Each head is fixtured into a centroid 5 axis cnc machine.
Subaru Impreza Ej20 Ej25 Cylinder Head Stage 2
Ej20 heads on ej25. Discussion starter 1 mar 15 2011. This is a complete remanufactured pair of 1996 1999 subaru 25 dohc ej25 round valley legacy forester outback impreza cylinder heads resurfaced with the poly crystalline diamond all the valves are refaced at 45 degree seats grinded with 3 angle valve job new valve steam seals installed. Our program carefully removes the unnecessary material from each intake and exhaust port leaving a machined finish that allows air to flow properly through the ports to maximize horsepower and torque. Ej25 heads on ej20 block factory 20l turbo powertrain ej series factory 20l turbo. Hey guys whats up im currently driving a 1999 usdm forester with very loud piston slap decided i want to buy a jdm motor to replace with but as we all. 1999 forester joined mar 12 2011 33 posts.
Opening up the chambers on ej20 heads for ej25 short block saving your 20 subaru heads and using them on a new 25 short block remaking the chambers with the cnc machine step 1. Ej20 with ej25 sohc heads 98 00 jump to latest follow 1 5 of 5 posts.