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View Full Version : question a2 head on a3 block


michaeld1169
05-30-2010, 11:16 PM
ya i know everyone says don't do the swap but i got the head for cheap and i am building my a3 block. i currently have a revhard turbo kit putting down 261whp and 227wtq. i am building my block before i do anything else. okay my question, what do i have to do to swap the a2 head on to my a3 block as in modifications. drilling, cutting, grinding? as far as i understand no mods are needed.
talonXracer
05-31-2010, 08:54 AM
For a FI application a A2 head swap is great, a real true power adder with a turbo.

No mods required at all, EXCEPT that you will need Kpro at this point.
michaeld1169
05-31-2010, 12:20 PM
got it that is what i am using now for tuning my turbo set up! thanks
Tortoise
05-31-2010, 12:25 PM
How about the head off of a 2010 si?
Deadphishy
05-31-2010, 01:12 PM
How about the head off of a 2010 si?

You will need to run an RBC intake manifold or deal with the extra coolant port that is not covered with a PRB manifold. When i had a TSX head, i tapped it and routed the coolant back into the T-state housing.
talonXracer
05-31-2010, 01:23 PM
No sense in not using the RBC mani anyways.