Zero Decking? - Team Camaro Tech
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post #1 of 4 (permalink) Old Jan 21st, 05, 07:12 PM Thread Starter
vee
 
Join Date: Jan 2005
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Question

Guys, what does zero decking heads mean, and how is this done? thanx
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post #2 of 4 (permalink) Old Jan 21st, 05, 07:28 PM
 
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Zero decking is when the piston is at the top of the deck after the deck is machined down so that it puts it there.

Usually a Chevy motor is a stock, about .025", "piston down in the hole".

pdq67



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post #3 of 4 (permalink) Old Jan 22nd, 05, 03:56 AM
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Gary
 
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Location: Lubbock, TX USA
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I might add that if it's done on a CNC machine, it gets the decks perfectly parallel to the crank centerline. I've seen some that needed as much as .020 more off of one corner than others due to less stringent quality control at the factory. If you have .075 quench and low compression, it doesn't do much good. However, if you're building a performance engine, this gets everything much, much closer to uniform which can be worth some ponies. I deck all of mine that I use for any kind of performance. My machinist says that there's no real advantage to going to absolute zero and they do most with the slug .005 in the hole. You can run a .030 or .035 gasket, whatever you're comfortable with, and it leaves just a smidge for a future cleanup if needed.
HTH

Gary Adrian
FCS Harmony Racing

Momma always told me not to look into the eyes of the sun.
"But momma, that's where the fun is!"
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post #4 of 4 (permalink) Old Jan 22nd, 05, 07:56 AM Thread Starter
vee
 
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Thanx, for the replys guys, I have alot to learn.vee
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