kossuth

iTrader: (12)

How much can you safely take off a stock LS1 aluminum block deck?

redz_02

iTrader: (4)

https://ls1tech.com/forums/generatio...liner-etc.html

kossuth

iTrader: (12)

Well, that doesn't give me the specs I was looking for. Thanks though.

smask04C5

iTrader: (1)

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.

kossuth

iTrader: (12)

Wow, that's a alot I would think... Any idea what your deck height was afterwards?

smask04C5

iTrader: (1)

9.224 finished deck. Rods are 6.125 plus 1/2 stroke plus compression height should be 9.23 assembled rod length.

kossuth

iTrader: (12)

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.

smask04C5

iTrader: (1)

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.

bww3588

iTrader: (49)

i have a 9.2182 finished deck on a 6.0 iron block.

kossuth

iTrader: (12)

10-4, gotta see what the shop says on the block. Probiably will be a few days yet though. Thanks for your guys help.