How to Identify a closed deck ej20g

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

Moderators: Helpinators, Moderators

Post Reply
Imprezive
Fourth Gear
Posts: 1428
Joined: Wed Jun 22, 2005 4:07 am
Location: Northern CA

How to Identify a closed deck ej20g

Post by Imprezive »

Ok, so I've got this EJ20G engine that I am going to sell but I am not sure if it has a closed deck block or not. At first I assumed all ej20g's were closed deck but not I don't know.

So far I've been told that if it has some kind of cross-hatching on the block it is a closed deck design. Is this true? Are there are other ways of finding out. (Other than pulling the heads off ) :wink:
1992 T-Leg = 195whp 197wtq SOLD :(
1988 4Runner RIP
2006 Suzuki DRZ400sm
2007 Miata
1994 Miata
2003 WRX Wagon
2016 Mazda 3
PhyrraM
Fourth Gear
Posts: 1980
Joined: Thu Aug 11, 2005 4:34 pm
Location: Lake Elsinore, CA

Post by PhyrraM »

From what I understand, look for a casting pattern of small squares in the bellhousing. Also 3 or 4 cast lines on the starter bulge.

Image
Image
'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
turboleg
Second Gear
Posts: 347
Joined: Wed Nov 22, 2006 12:17 pm
Location: Western NY

Post by turboleg »

The crosshatch is on my EJ22T and not on any of my NA's. Not sure that it hold true for the EJ20G though.
- Findlay
"You say grease monkey like its a bad thing"
http://www.toolsource.com
Imprezive
Fourth Gear
Posts: 1428
Joined: Wed Jun 22, 2005 4:07 am
Location: Northern CA

Post by Imprezive »

phyrra, thats the exact pattern that is on the bottom my my block. I'm thinkin' it might be closed deck now.
1992 T-Leg = 195whp 197wtq SOLD :(
1988 4Runner RIP
2006 Suzuki DRZ400sm
2007 Miata
1994 Miata
2003 WRX Wagon
2016 Mazda 3
Matt Monson
quasi-mod-o
quasi-mod-o
Posts: 2574
Joined: Sun Nov 09, 2003 8:24 pm
Location: Ghetto Garage, CO, USA
Contact:

Post by Matt Monson »

Phyrra is correct. It's the same for the Ej20G's. The cross hatching will be on the bellhousing as he has shown AND on the tunnel that the head bolts run through...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
Post Reply