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LS3 v8 $1000
LS3 5.3 LH6 |
This is not an LS3.
5.3 truck engines are not LS3's. |
"5.3l version of the ls3" aka not an ls3.
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OP mentions you could bore to 5.7L. Lol so its the 5.3 version of the LS1?
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There is nothing LS3 about that engine. Totally different. It more resembles LS1/2/6. Cathedral port heads. |
Plus, this is not an aluminum block. |
Originally Posted by thirdgen
(Post 1497847)
Plus, this is not an aluminum block. |
NVM
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It also can’t be bored. |
Originally Posted by fast377
(Post 1497858)
It also can’t be bored. You can bore it. They have iron sleeves. You can even get really dumb and resleeve the block, just like other aluminum blocks from other modern engines. |
Originally Posted by boileralum
(Post 1497864)
You can bore it. They have iron sleeves. You can even get really dumb and resleeve the block, just like other aluminum blocks from other modern engines. Nope. They can take about .005” hone, but that’s it. Stock sleeves dont allow any more. Any increase in diameter necessitates sleeves. |
Originally Posted by fast377
(Post 1497866)
Nope. They can take about .005” hone, but that’s it. Stock sleeves dont allow any more. Any increase in diameter necessitates sleeves. This article states the LH6 can do .128”. Do you have a source that contradicts that? https://www.hotrod.com/articles/max-...for-ls-blocks/ |
Then I stand corrected if that table is correct. But I have not seen that done. I’ll have to see if I can get my hands on a case and measure it.
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Originally Posted by boileralum
(Post 1497867)
This article states the LH6 can do .128”. Do you have a source that contradicts that? https://www.hotrod.com/articles/max-...for-ls-blocks/ Looks like this might be right after all. I dragged an L33 (another aluminum 5.3) out of the shop, and it has very thick liners. A decent size overbore looks possible. |
its a good deal if your in the market for a nice alum 5.3 that is newer and capable. Go post this on norotors.com and itll sell today
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Originally Posted by fast377
(Post 1497910)
Looks like this might be right after all. I dragged an L33 (another aluminum 5.3) out of the shop, and it has very thick liners. A decent size overbore looks possible. My understanding is that the same liners are used for the 5.3 and 5.7 blocks, and that the 5.3s are just not bored out as large, hence the 5.7 blocks not being able to be overbored |
Originally Posted by fast377
(Post 1497866)
Nope. They can take about .005” hone, but that’s it. Stock sleeves dont allow any more. Any increase in diameter necessitates sleeves. |
I've done this with a friend already hence why I posted what I did. The heads untouched are not L33 heads but with some hand porting are actually better. I originally posted this at $1700, got a little interest but ultimately nobody budged . At $1000 this is a steal and a very good motor. The sleeves are the same at the ls1 and with an overbore, hand port and cam this motor will make serious power. Engine is still available and ready to be picked up. Also why the hell would I lie about this engine, what would I gain? I know every person on here knows how to use the internet and can use a magnet to check the block to see if it's aluminum. If someone doesn't want it then I'll just find another project for it, simple as that.
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So admittedly I got something wrong this is a LS2 5.3 equal. My bad, sorry guys, these are the cathedral ports not a square port. I'm really not trying to deceive anyone just trying to sell the motor
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1 Attachment(s)
I've been to a few cathedrals. Votive Cathedral in Vienna was a lovely example.
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