Decking a block
Thread Starter
Joined: Aug 2002
Posts: 969
Likes: 1
From: New Market, MD
I've taken as much as .018 off the deck of an 1168 LS6 block. The decks are surprisingly level, front to back and side to side. I am building a '383' for my vette and I took .013 off the driver's side bank and .014 off passenger side to get pistons .006 out of the hole.
Thread Starter
Joined: Aug 2002
Posts: 969
Likes: 1
From: New Market, MD
Gotcha. So your motor was about 9.24" from the start "roughly" Thank you. Here's what I am doing. I'm trying to refresh a motor using mostly stock components. Deck is alittle rough gonna need about .005 removed to clean it up. After doing about 4 hours of looking I ran across this. http://www.ls1engine.com/tech/ls1-en...arances-specs/ So I'm hoping this block is on the + side (especially on the damaged side) the block is + some material.
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If you are trying to fix with stock parts, remember that the stock piston can be proud of the bore by .010-.012 @TDC. Just make sure you make corresponding changes to quench. Tighter quench reduces possibility of detonation. If you end up .010 proud on pistons, I'd use a .045 Cometic MLS gasket.
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Thread Starter
Joined: Aug 2002
Posts: 969
Likes: 1
From: New Market, MD
If you are trying to fix with stock parts, remember that the stock piston can be proud of the bore by .010-.012 @TDC. Just make sure you make corresponding changes to quench. Tighter quench reduces possibility of detonation. If you end up .010 proud on pistons, I'd use a .045 Cometic MLS gasket.