Thread: steel shim head gaskets

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i try to cut every head and block if not check it. i build engine,s for a living. i have a machine shop and i all ways cut the decks on the newer chevy small blocks they have a very choppy deck that make that type of gasket not work on them blocks . if you do not want to mill it get a big file get all oil off the deck and run the file over the deck then you can cut the wave of the deck this can work good if you cross file the deck of the block .you will have to take out the head locating pin,s tap them on the side with a drift punch and hammer then use visegrip to work them out. to put them back in flip the pins with teeth marks in to the block or just by new pins they can be had it many nut bolt stores. the file should be clean and flat . a mill file longer the better there also has been times were it had to cut new heads to get the finsh better this is alway s has been a big deal to me .the better the finsh on the deck and head the less gasket you need like a comp gasket has some forgiveness were a steel shim will not. it can compress so far. there multi layer can form over more hi and lows in the deck and block