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30 June 2007, 12:23 PM
#1
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Hello everyone,
What are the main differences between STi 1-4 heads?
I've currently got 1 wrx head (hydaulid lifters) and 1 RA head (manual lifters) on my94 RA
, apparently thats no good and I need new ones, so I've spotted some STi ones for sale and was wondering what was the difference between all the variants.
Whats the best etc and how much will I benifit from more recent ones etc..
Thanks
What are the main differences between STi 1-4 heads?
I've currently got 1 wrx head (hydaulid lifters) and 1 RA head (manual lifters) on my94 RA
, apparently thats no good and I need new ones, so I've spotted some STi ones for sale and was wondering what was the difference between all the variants.Whats the best etc and how much will I benifit from more recent ones etc..
Thanks
30 June 2007, 11:57 PM
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your set up will only allow upto version 4 heads due to the inlet manifold and cam wheel pick up etc..
the best of that bunch is STi3, followed by STi4, followed by Sti 1 or 2 solid lifters.. just make sure you check the sti4 heads are really sti4.. ie. they are under bucket shimmed etc..
Simon
the best of that bunch is STi3, followed by STi4, followed by Sti 1 or 2 solid lifters.. just make sure you check the sti4 heads are really sti4.. ie. they are under bucket shimmed etc..
Simon
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