468 ls
Thread Starter
Safety Car
Joined: Jul 2010
Posts: 3,846
Likes: 380
From: Chandler AZ
468 ls
I stumbled on a article online about a 468 LS, but it did not mention what block it used.
Google search did'nt bring up much, had no idea you could have such a big LS!
Anybody know about them?
Google search did'nt bring up much, had no idea you could have such a big LS!
Anybody know about them?
Le Mans Master
Joined: Oct 2010
Posts: 7,373
Likes: 1,128
From: cold & windy
is this the one you're talking about?
http://www.hotrod.com/techarticles/e...t/viewall.html
looks like they put some serious work into an LS3 to shoehorn in some 4.185 pistons & a 4.25 crank
http://www.hotrod.com/techarticles/e...t/viewall.html
looks like they put some serious work into an LS3 to shoehorn in some 4.185 pistons & a 4.25 crank
Drifting
Joined: May 2010
Posts: 1,482
Likes: 2
From: Pearland, TX
I was told that 482 was as large as you could go, with a tall-deck LSX block. 4.25" x 4.25"
Not sure if that's entirely true. I believe bore spacing has to stay 4.4" center-to-center for any LS block so I don't think you'd want to make the bore any larger than 4.25". I guess maybe with a custom crank you could get a little bit more stroke but GM doesn't recommend larger than 4.25".
Not sure if that's entirely true. I believe bore spacing has to stay 4.4" center-to-center for any LS block so I don't think you'd want to make the bore any larger than 4.25". I guess maybe with a custom crank you could get a little bit more stroke but GM doesn't recommend larger than 4.25".
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
and I want a twin turbo 482, but would like to know gas mileage
Another thing is traction actually. I may be unable to even with 345's
I need someway to justify this lol
Last edited by TriplBlk; Sep 13, 2011 at 02:03 AM.
Drifting
Joined: May 2010
Posts: 1,482
Likes: 2
From: Pearland, TX
I don't think any of the GM aluminum blocks can do that. The LSX tall deck block can handle a 4.5" stroke, but the standard decks can only handle 4.25". Maybe 4.3" if you can get a machine shop to spend some time on your block.
Maximum bore would still be 4.25" and for that you would have to sleeve it, and since you have to sleeve it, it doesn't matter if you use an LS1, 2, 3, or 6 block.
So if you could manage a 4.3" stroke (I don't see a 4.3" stroke on TSP's website - only 4.25) then you could build an aluminum-block 488.
That said - TSP does have a Lunati 4.6" crank on their site. That with a tall-deck LSX would make a 522.
Maximum bore would still be 4.25" and for that you would have to sleeve it, and since you have to sleeve it, it doesn't matter if you use an LS1, 2, 3, or 6 block.
So if you could manage a 4.3" stroke (I don't see a 4.3" stroke on TSP's website - only 4.25) then you could build an aluminum-block 488.
That said - TSP does have a Lunati 4.6" crank on their site. That with a tall-deck LSX would make a 522.
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Le Mans Master
Joined: Oct 2010
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From: cold & windy
http://www.camaro5.com/forums/member.php?u=4539
he had to stop at 1400+hp until he can get his new heads built. he's got 345 Mickey Thompsons for the street
http://www.camaro5.com/forums/showthread.php?t=88877
Thread Starter
Safety Car
Joined: Jul 2010
Posts: 3,846
Likes: 380
From: Chandler AZ
Hey Bob, about how much does it cost to have a LS3 block sleeved to make a 454?
Would it be better to start with a LSX block, yes I know they weight more, but in my case it might not matter as I don't race.
Would it be better to start with a LSX block, yes I know they weight more, but in my case it might not matter as I don't race.
Melting Slicks
Joined: Nov 2002
Posts: 2,884
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From: Jamison Pa
St. Jude Donor '11-'25
I'm in the process of moving, so I won't have it installed for a month or so.
Bob K.
Thread Starter
Safety Car
Joined: Jul 2010
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From: Chandler AZ
This is interesting, I would like to know how your 454 build ranks vs a LS7, and if you can build the whole thing cheaper than the price of a crate LS7.
A big inch engine like this sounds more fun to me than a stock LS1 with a supercharger like a lot of the guys run.
A big inch engine like this sounds more fun to me than a stock LS1 with a supercharger like a lot of the guys run.
Thread Starter
Safety Car
Joined: Jul 2010
Posts: 3,846
Likes: 380
From: Chandler AZ
Would love to have one in my 99, even though the 75K LS1 runs like a champ, it needs more power after having it for over 8 years!
Thread Starter
Safety Car
Joined: Jul 2010
Posts: 3,846
Likes: 380
From: Chandler AZ
is this the one you're talking about?
http://www.hotrod.com/techarticles/e...t/viewall.html
looks like they put some serious work into an LS3 to shoehorn in some 4.185 pistons & a 4.25 crank
http://www.hotrod.com/techarticles/e...t/viewall.html
looks like they put some serious work into an LS3 to shoehorn in some 4.185 pistons & a 4.25 crank
Drifting
Joined: May 2010
Posts: 1,482
Likes: 2
From: Pearland, TX
No, I guess not. I know when they came out they were around $14,000 and I thought maybe they had come down. Lowest I see is $13,500.
Thread Starter
Safety Car
Joined: Jul 2010
Posts: 3,846
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From: Chandler AZ
Saw a ad on spike while watching a 1970 Camaro be rebuilt on Musclecar.
It shows a 427 for 8998.95, the link took me here..http://www.summitracing.com/parts/ML...71CT/?rtype=10
It shows a 427 for 8998.95, the link took me here..http://www.summitracing.com/parts/ML...71CT/?rtype=10