Bigger valves for EJ20G
Moderators: Helpinators, Moderators
Bigger valves for EJ20G
So I have a 1990 Legacy N/A 2.2 that I got for a pretty good deal. I want to eventually build a turbo motor to drop into it and have started to collect some parts. I want to stick with older JDM turbo heads, but I am thinking of increasing the valve size in the heads. The only problem I have is that I can only find performance valves for the ej205 and ej257. Does anyone know if I can fit these valves into say, an ej20g or ej20h? If they do fit, does anyone know if they possibly fit into the ej22t head if I go that route instead? Or if anyone knows of where to get valves for said heads?
Valves are kind of universial. The have a stem diameter and length, and a head diameter.
If you can find valves that are close to what you want, any good engine machine shop can make them work......for a price, of course. Larger valves involve machine work to fit anyways, so the extra work for custom ones should be minimal.
As far as drop-in replacements? I'm not sure about EJ20G, but I'm fairly certain that you will not find EJ22T valves. I would look into older JDM suppliers catalogs as those motors never officially came North America.
If you can find valves that are close to what you want, any good engine machine shop can make them work......for a price, of course. Larger valves involve machine work to fit anyways, so the extra work for custom ones should be minimal.
As far as drop-in replacements? I'm not sure about EJ20G, but I'm fairly certain that you will not find EJ22T valves. I would look into older JDM suppliers catalogs as those motors never officially came North America.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
Well I know I have to have machine work done to the valve seats to get oversized valves to fit in the heads. I was just wondering if all other dimensions of the valves were the same, as in the stem length and diameter. I know that if the diameter was the same and just the stem length was differant that I could just have them machine the length, but I am not sure if the valves for ej257 motors are sodium filled or not. I dont believe they are, but at the same time I dont want to order a custom $150 set of valves, just to find out they wont work.