Aussie Heads?
Elder User
Joined: Sep 2001
Posts: 887
Likes: 1
From: Jax FL
Aussie Heads?
lets see, i got a 400 4v clsoed heads 11.76 cr, and flat tops. its not that hard really its not. the pistons sits .0565 in the hole, you need .020 to make a quench. you can safely take .015 from the heads and .045 from the block. now if my nums are a little off, its late, im tired and this has gotten drug out.
Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
Aussie Heads?
Are you running pump fuel? If so, any ping at all? I know quench heads greatly reduce that chance, but...
Hey, we can't get the super premium they used to have! Darn it! I run 10.7:1 factory compression ratio in my 71 351C, and I have never heard any ping off pump gas!]
Mark
https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=5362&.jpg
Ford started it; Ford will finish it!
Hey, we can't get the super premium they used to have! Darn it! I run 10.7:1 factory compression ratio in my 71 351C, and I have never heard any ping off pump gas!]
Mark
https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=5362&.jpg
Ford started it; Ford will finish it!
Aussie Heads?
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