Reply With Quotewhile you can put the a2 head on the a3 bottom end, you will be turning the engine in to a time bomb.
that I need to change head k20a2 and to leave to the block and tranny k20a3
Last edited by talonXracer; 11-09-2008 at 12:24 PM.
while you can put the a2 head on the a3 bottom end, you will be turning the engine in to a time bomb.
No you will not have a time bomb, but you will need to use a typeS ECU at a minimum, kpro preferably. It will not be as powerful as a typeS and the time and cost of a head swap is about the same as doing a complete A2 swap.
ALL advice issued with this "Disclaimer"
Tim "the Toolman" Taylor is my HERO ! ! !
"Labor Unions are Domestic Terrorist orgainizations"
it took me less time to pull the motor, swap over a head, waterpump, oil pump, and transmission, and put that new motor back into my car, Then it did to just change my head gasket while the motor was in the car. just an FYI.
I think fully tuned with bolt ons this set up makes about what a k20a2 makes all stock.
9.8:1 vs 11:1 that 1.2 points is good for over 20 extra HP if cammed for it, which the a2 cams are.
Let us not forget that you will be running a lower RPM oil pump, that might not be able to hold oil pressure up into the higher RPM ranges that head will be making power at.
Last edited by Deadphishy; 09-29-2010 at 08:43 AM.
damn good info, thnx
i was wondering the same, i found an a2 head for about $800
anybody have an idea how much an a2 complete engine with decent miles go for?
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