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LS Engines Maybe the future of I/O's

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Old 02-05-2024, 02:08 PM
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Post 6
Countdown for photos
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Old 02-05-2024, 02:09 PM
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3 more Post to go for Photos
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Old 02-05-2024, 02:09 PM
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Almost there get Ready!
2 more to Go
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Old 02-05-2024, 02:10 PM
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Originally Posted by Wildman_grafix
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
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Old 02-05-2024, 02:11 PM
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This is like work to get to 10 post
Hope it is worth it Have to see one more to go
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Old 02-05-2024, 02:13 PM
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Post !0!!!
I am here so I hope now to get the Show Going.
Got a few Photos here they Come.
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Old 02-05-2024, 02:30 PM
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500lbs! Lol
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Old 02-05-2024, 02:30 PM
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Originally Posted by c0ncEpT
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.
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Old 02-05-2024, 02:31 PM
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Hope the wait was worth it. Lets talk

Engine before going on Dyno

Yes Sea Pump is all wrong and getting reworked
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Old 02-05-2024, 02:37 PM
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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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