Quick DOHC head comparison

Heads, valves, pistons, rods, crankshaft, etc...

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PhyrraM
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Quick DOHC head comparison

Post by PhyrraM »

Legacy EJ20G, ~ 2 1/4 x 1 5/16
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Impreza EJ20G, ~ 2 1/4 x 1 5/16
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EJ25D, '98 2.5RS, ~ 2 3/16 x 1 1/4
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Notice the socket clearly does not fit in the EJ25D head.
'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
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dscoobydoo
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Post by dscoobydoo »

what about ej20k heads?
Yes I have too many Subarus
No you can't have one
05 GD-STI
01- RS- Swapped-07 STI
00- GF
93 SS- "the original Robtune" (now in new hands)
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PhyrraM
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Post by PhyrraM »

dscoobydoo wrote:what about ej20k heads?
Don't have a set to measure. Supposedly they are the same basic casting as the EJ25D heads, but with larger ports. There is a good thread on Nasioc, butI figured I'd throw these up here because these are the commonly discussed heads on LC.
'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
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kimokalihi
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Location: Tenino, WA

Post by kimokalihi »

Which car is an EJ20K from and which one is the EJ20H from? I have a twin turbo 95 motor, which version is that?
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
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PhyrraM
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Location: Lake Elsinore, CA

Post by PhyrraM »

EJ20K is V3 and V4 WRX/STI.

EJ20H is Early twin Turbo Legacy. I *think* EJ20H is very close to EJ20G WRX heads.
'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
Top
kimokalihi
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Joined: Mon Nov 06, 2006 3:41 am
Location: Tenino, WA

Post by kimokalihi »

Alright so I have an EJ20H motor and I also have a spare set of EJ20G or EJ20K heads.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
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jake15
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Post by jake15 »

kimokalihi wrote:Alright so I have an EJ20H motor and I also have a spare set of EJ20G or EJ20K heads.
the heads that came with your car are ej20g heads :-)
90' legacy built ej257 gt30r 6spd r180 and brembos Bitches 402whp @22psi :D -sexy red
94' Impreza wagon AWD 2.2ltr rally wagon FTW!
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kimokalihi
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Post by kimokalihi »

Thanks jake. I guess you didn't notice but I sent you 2 pms about which heads they were and the differences between the heads but never got a response. That was a while ago.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
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kimokalihi
Fifth Gear
Posts: 8360
Joined: Mon Nov 06, 2006 3:41 am
Location: Tenino, WA

Post by kimokalihi »

So, which heads should I use? The EJ20G or the EJ20H?
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
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