Quote:
Originally Posted by 1slow370
leaving that surface won't blow the engine per say it just makes the HG more likely to fail prematurely
Edit: The other companies that build these motors (GTM, IPP, Jtran) all deck the blocks to a new finish.
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some machine shops will NOT deck a block unless you request it or they have to, its removing material. you do not need to deck a block to get proper head gasket seal