I used 20 over supertechs.
OEM bore felpro
Have beaten the shit out of it, and its holding up great. T3/T4 550cc enthalpy tune. 8.6:1 comp
Quote:
Originally Posted by jr_ss
Stay away from the Cometic... You'll need a headgasket that is .5mm larger than your original one. I'm not sure what the KA bore is from the factory.
.020in = .5mm
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You don't need one that is 20 over.
Quote:
Originally Posted by s13turbohatch
And future plans for the engine are to go higher than 300bhp so oem is out of the question but Cosworth is a respectable trusted brand.
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Your lack of experience is showing.
Quote:
Originally Posted by fliprayzin240sx
BS...if the engine is properly decked and matched evenly, you can push over 500hp on a stock HG with some ARP headstuds.
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This man knows what he's talking about.
I guess this is zilvia.....
As for cometics, you have to look at that dynamic. Cheap asses aren't going to deck the head, and finish the blocks mating surfaces. A metal headgasket, by nature is going to be MUCH less forgiving. You don't have good surfaces you're fucked. OEM style crush gaskets aren't as picky with the sealing surfaces as they press into the material, it WANTS to seal.