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05 April 2006, 04:47 PM

myblackwrx

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engine types

Whats the differance between a closed deck block and a semi closed deck block?
I have a 93 wrx which as far as I know has a closed deck block is this better than a semi closed block?

cheers Paul

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05 April 2006, 05:12 PM

axgt_bwaii

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something to do with better head gasket sealing. wouldnt know which one is what though

stew

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05 April 2006, 07:33 PM

jaytc2003

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a closed deck block has more material around the cylinder walls so theoretically it will be stronger. However people on here are running over 400bhp with the semi closed block. If you do a search you will find some pictures and it will become clear