4.1 block owners please step inside

Sleeper

Member
Joined
May 24, 2001
Looking to see who has safely decked, or had to mill their 4.1 block, and by how much.

Please list your deck height.

Thanks
 
I do not remember how much but mine was decked as well. The piston sat to low in the hole for my liking.
 
I have gone .025 for an N/A build on one but not sure on the new bullet. Most of the 4.1s I have had need several thou deck just to clean up. Maybe I have bad luck but .010 has been the MINIMUM I have gone.
 
Sorry, it's been a while but now have the time to get back to my project again, so I'm resurrecting this thread.
Anyone else?
 
Mine was decked .030 on a N/A build to clean up some dings in the deck due to the block being stored in a machine shop for a long time. The head bolt threads had to be re-countersunk. So far, no problems with many runs on a 125 shot and 1200 street miles.
 
Mine was clean and squared after taking off .002"... then I took off another .033" to make it .010 shorter than a 109 block.
 
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