block decking
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
I stated in my post I was talking about street engines on pump gas and you guys are talking 260:1 CR 
Sorry don't mean to steal your post just interested in this stuff
I was going to try and get the quench down to 0.040" or so on mine but all the work invloved was not worth it in my opinion, I was at the minimum piston to valve clearance as it was on the exhaust valve and taking the pistons out, flycutting, trying to find the correct gasket or have heads milled again just seemed too much, as I tried to figure out what I was gaining by doing it.
Sorry don't mean to steal your post just interested in this stuff
I was going to try and get the quench down to 0.040" or so on mine but all the work invloved was not worth it in my opinion, I was at the minimum piston to valve clearance as it was on the exhaust valve and taking the pistons out, flycutting, trying to find the correct gasket or have heads milled again just seemed too much, as I tried to figure out what I was gaining by doing it.
Last edited by MotorHead; May 6, 2005 at 09:38 PM.
Burning Brakes
Joined: Feb 2005
Posts: 894
Likes: 91
Saving th Numbers
We've done literally "hundreds" of block decks on "numbers-matching" castings. Never removed one number. It's a little "tricky" to accomplish,
but fairly easy. The final milling, in the numbered area, has to done on a "Bridgeport". There is always a slight "step" at the numbered area, but cannot be seen at all once the heads are installed. Thanks, Gary in N.Y.
but fairly easy. The final milling, in the numbered area, has to done on a "Bridgeport". There is always a slight "step" at the numbered area, but cannot be seen at all once the heads are installed. Thanks, Gary in N.Y.
Melting Slicks
Joined: Jun 2003
Posts: 2,490
Likes: 0
From: A high school diploma fixing what a college degree broke TN
St. Jude Donor '03 thru '26
Slightly off the main subject but it was asked earlier how much power its worth to deck a block.I just happened to be reading one of David Vizards book on small blocks and I quote "Decking the block to 9.000 inches for a Fel-Pro .038 gasket or 9.010 for a steel shim is worth 8-10 horsepower and reduces octane requirements." He goes farther into it than that,but you get the idea.He seems to do lots of dyno testing thruout the book to back up his statements. 
