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Originally Posted by Lazarus_023
Update: added 33M head. incidentally, i've one for sale. i don't know the deck thinckness, but you could cut it to up the compression, and it does have the high-flow, low-swirl intake ports...
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Hi Guys,
Just a note here. I read in the Nissan motorsport catalog that quote: "Compression increases in E-series engines should be obtained with the use of alternate pistons and NOT by cutting the cylinder head [OE thickness = 120mm/4.72"].
Another reason not to cut the head is that you will retard the cam timing considerably, and the timing belt will be too long as well.