open or closed block help needed?
12 August 2011, 05:14 PM
#1
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open or closed block help needed?
hi is there anyway of finding out if my block is open or closed deck without taking the head off as my engine has been out and possibly changed b4 i brought it
Also
will open deck heads fit a closed block or closed fit open???????
and r ra heads any better than sti/wrx heads and any problems fitting?
sorry for all questions but never had to change heads on scoob b4
cheers
john
Also
will open deck heads fit a closed block or closed fit open???????
and r ra heads any better than sti/wrx heads and any problems fitting?
sorry for all questions but never had to change heads on scoob b4
cheers
john
12 August 2011, 05:40 PM
#2
The dimensions of both blocks are the same so are interchangable...........unless you are running huge power then which block makes no difference.
Why do you need to change the heads ??
Shaun
Why do you need to change the heads ??
Shaun
12 August 2011, 06:23 PM
#4
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All the EJ20 v1-4 heads are the same castings, wrx have hyd lifters, sti have solid ones. Cams differ depending on year, again wrx and sti are different, some RA are different again. There are underbucket and overbucket shims too depending on year
12 August 2011, 09:34 PM
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cheers
john
12 August 2011, 10:35 PM
#6
by tappets do you mean cam followers ?? Have you had a search around here for API's advice on noisy top ends??
500 has answered your questions.......for the most part the RA (Race Altered) were lightened / cheaper versions of the siblings on which they were based.
Shaun
500 has answered your questions.......for the most part the RA (Race Altered) were lightened / cheaper versions of the siblings on which they were based.
Shaun
12 August 2011, 10:50 PM
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by tappets do you mean cam followers ?? Have you had a search around here for API's advice on noisy top ends??
500 has answered your questions.......for the most part the RA (Race Altered) were lightened / cheaper versions of the siblings on which they were based.
Shaun
500 has answered your questions.......for the most part the RA (Race Altered) were lightened / cheaper versions of the siblings on which they were based.
Shaun
cheers
john
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