classic sti heads Q
25 January 2008, 08:11 PM
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classic sti heads Q
how can you tell if heads are sti ones
been offered some to fit my 94 RA,but the lad is unsure what year they are off
and if they are defenitly sti ones
they are still fitted to block (which has a suspect snapped conrod)
anyone no how i can tell without stripping heads down
been offered some to fit my 94 RA,but the lad is unsure what year they are off
and if they are defenitly sti ones
they are still fitted to block (which has a suspect snapped conrod)
anyone no how i can tell without stripping heads down
26 January 2008, 09:30 PM
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my orginal engine is a RA
i was offered some sti heads to fit my RA (was told they will improve performance)
once its been mapped
but the lad was unsure they are defo sti heads
he said i can take engine and remove heads and check to see they are sti ones
what am i looking for to confirm they are sti heads
are valves a different size
anyone
i was offered some sti heads to fit my RA (was told they will improve performance)
once its been mapped
but the lad was unsure they are defo sti heads
he said i can take engine and remove heads and check to see they are sti ones
what am i looking for to confirm they are sti heads
are valves a different size
anyone
27 January 2008, 11:31 PM
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If they have a oval coil hole, you can remove the valve covers and see if the tappets are "solid". On a WRX you can clearly see the shim.
V3-V4 STi heads should look like this when you have the valve cover off
If they have a square coil hole like this, you need to take out a lifter to see if they are V2 STi RA.
If the lifters look like this, RUN
Cheers
V3-V4 STi heads should look like this when you have the valve cover off
If they have a square coil hole like this, you need to take out a lifter to see if they are V2 STi RA.
If the lifters look like this, RUN
Cheers
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13 April 2008, 09:03 PM
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Sorry to hijack, but I'm about to pull my heads apart. Is that thing where it says 'If they look like this, run', a hydraulic lash adjuster off an early WRX head?
17 April 2008, 11:22 AM
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