hi everyone.. noob on the board..

 is there anyone setting  up LS-1 based engines in boats ?
i have  a day cruiser project that needs some love.
any info would be appreciated.

The guy that bought the Southwind from me said he had a LS1 he was going to put in it. He said he had done some research but wasn't able to find anything for the swap.    Sounds like all the parts are going to have to be custom made.

You might have to make custom headers! The regular small block headers will not fit the ls engines.

thanks for the input.

i was checking out the bbf logs and the bolt hole spacing looks close.

thanks for the tip on the bellhousing..as long as the four on the dowels match up, it should be good to go..
i wasn't thinking about the pto.. the later ls stuff is different than the first gen sbc stuff.
but,, nothing a tranfer punch and 6 spd flywheel wouldn't fix ?
i wonder on cooling if it will need a restrictor on the oulet ?
i know in  a car or truck, they run them pretty hot.. and with the lake being the biggest radiator, be lucky to see 160 deg f. might be a little cool ?

i was reading an older hot rod or chevy hp and dutweiler? had an l92 headed 6 liter ls type with the new magnacharger and they were getting some nice numbers out of it with a conservative tuneup.in the 7's on pump gas.
i cant wait .. no more burned knuckles reading plugs..only down side is dropping the laptop in the water.LOL!
i need to do some home work on this.
thanks for any input.

pics. We need pics.

I don't know for sure if the PTO flange will match up, but they changed just about everything else on them. My cam only LS1 (stock 241 heads) with a fast 90 intake puts about 430 to the tires, and its got 108,000 miles on the clock 

Also, they make carbed intakes and even an adapter for a distributor if you don't want your laptop getting wet!!

The only bellhousing bolt that doesn't match up is one of the top two.

I would try to get the temp up, as they come from the factory with a 185 thermostat. If you get it rebuilt and tell the machinist to make the pistons a little extra loose, then I wouldn't worry about it though.

which cam ?


i bet i could use a bbc bellhousing one of the forum members has for sale.. then weld on extra ear or tab on it for the off beat hole... not that it would really need it.
{like darrel young used to do at long beach veterans stadium years ago}

the car only had 56k miles on it. im hoping the engine is still tight.
the thing runs even though the radiator is smashed.
it has all the bolt on stuff except the intake.. i would have to check and see if it had the later factory intakes swapped in.it  has a hogged out mass air unit and slp intake lid, cat back exhaust, fanswitch over ride, iat resister.the normal stuff to get the car in  the 13's.
this ls stuff is all new to me...
but i know they make some big numbers without to much work and stay together pretty good.
{almost scary like an asian engine..with ford heads ?
 i'll bet i take a beating for saying that..}

someone pm'ed on headers.. i didn't think about the sandrail stuff..
i have a friend into that glamis stuff. i should hit him up and see what they are making..?
if not ,i was thinking sandwich plates like the splayed port first gen exhaust adapters..what ever is close to an  LS-1 ?
im not really looking for full-on headers..unless they are like the rewarder stuff. i want to cover the whole engine bay with a hard cover and use gas struts.. like a newer boat.then use a bench and two buckets up front. similiar to a 22' scarab or eliminator or donzi.. i know it is an older boat and it might be tabboo.. but i want to load people in it safely with no problems.and i have some time and not alot of money...i want to use some ingenuity  instead of tapping out my tapped out credit cards..
i wonder if foose does boats?
i will get some  pics up.. i don't want to sound like i'm full of stale gas..
thanks everyone for the responses.
any info is always appreciated...

... and i have some time and not alot of money...i want to use some ingenuity  instead of tapping out my tapped out credit cards..
i wonder if foose does boats? ...

   I don't know if Foose works on boats but I'm sure he will for some cash and he isn't going to be cheap. Machine work, custom headers, more time than money, I hope you can do your own machining and welding.

What HP and torque numbers does a LS1 put out?

that looks damn good! 

Damn, I could see this in my boat!

i have wondered about this for a while, does the ECU draw any power form the batteries while the boat is turned off?

Would it be enough to kill a battery, say if the boat wasnt started in 2 days?

back to the headers, Have them built and go 8 into 1-  it is probably one of the sickest things you will ever hear, and I can guarentee you will have the only boat on the water to sound like it