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-   -   LS Engines Maybe the future of I/O's (https://www.offshoreonly.com/forums/general-q/381592-ls-engines-maybe-future-i-os.html)

LakeBoat4 02-05-2024 02:08 PM

Post 6
Countdown for photos

LakeBoat4 02-05-2024 02:09 PM

Post 7
3 more Post to go for Photos

LakeBoat4 02-05-2024 02:09 PM

Post 8
Almost there get Ready!
2 more to Go

c0ncEpT 02-05-2024 02:10 PM


Originally Posted by Wildman_grafix (Post 4890165)
I am going to be following, getting close to reposer time and it sure seems like LS/LT would be the way to go in the 500-600HP range. Just make 10 posts total, this is your thread just do it here,,,, count down 10,9,

Heck GM builds these base motors and sends to marine power and Kodiak to marinize it the rest of the way.

https://marinepowerusa.com/engines/6-2l-lt4-sportpac

https://www.kemequipment.com/marine-...#product-title

I do not believe an LS in the 600hp range naturally aspirated would be as reliable as a BBC.

Now an LT4 or LT5 in that range would work well. Still likely need 93 octane where the BBC would be able to run on 87/89

LakeBoat4 02-05-2024 02:11 PM

Post 9
This is like work to get to 10 post
Hope it is worth it Have to see one more to go

LakeBoat4 02-05-2024 02:13 PM

Post !0!!!
I am here so I hope now to get the Show Going.
Got a few Photos here they Come.

hogie roll 02-05-2024 02:30 PM

500lbs! Lol

Wildman_grafix 02-05-2024 02:30 PM


Originally Posted by c0ncEpT (Post 4890190)
I do not believe an LS in the 600hp range naturally aspirated would be as reliable as a BBC.

Now an LT4 or LT5 in that range would work well. Still likely need 93 octane where the BBC would be able to run on 87/89

I agree in NA but those motors posted are all SC and direct injected LT4's. That would be the one I wonder about is if they would be as reliable as a NA BBC.

On the octane for me whatever has to be 90, it's what you can buy on the water. I think those could handle 90, but need to check.

LakeBoat4 02-05-2024 02:31 PM

Hope the wait was worth it. Lets talk
https://cimg0.ibsrv.net/gimg/www.off...53ad4e46b6.jpg
Engine before going on Dyno
https://cimg4.ibsrv.net/gimg/www.off...ae0e425c01.jpg
Yes Sea Pump is all wrong and getting reworked

ICDEDPPL 02-05-2024 02:37 PM

So there is a replacement for displacement?

I love Orings on an LS vs regular gaskets on a BBC.
I used to dyno and have short blocks assembled and machined at Borowskis till Ken went full LS engines and wasn`t interested in BBC/Marine guys anymore.
Wonder how telling guys with 2 of everything to go pound sand worked out for him.


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