Thread: My 400 yz
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  #28  
Old 01-01-2022, 09:38 AM
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67Fbird 67Fbird is offline
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Join Date: Mar 2021
Location: GA
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just some info on PISTONS!!! BEFORE you deck anything make sure you have your PISTONS in hand as they all vary in their compression height number.

IIRC Icon is 1.490
DSS is 1.480

that's .010" difference just in the same XXXX dish piston. Also Head gaskets matter. Seems the Felpro's are about .038-.039 while the Butler's come in at .045-.046 so...again another .007". When putting everything together you have .017" of deck difference JUST N WHAT YOU BUY..