Looking to replace your worn out valve guides?  Try SB International for Stock Replacement Subaru parts.  We use SB International in our machine shop on our subaru heads. 
 
Intake & Exhaust; 0.2365 I.D.,2.065 Length,0.4363 O.D.
+1 O/S Available
 
Type
Data
Chimney Diameter
N/A
Chimney Height
N/A
I.D.
0.2365
Length
2.065
Material
IRON
O.D.
0.4363
Type
5-SR