Conversions & Swaps LSX Engines in Non-LSX Vehicles
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76 Sidewinder jetboat 5.3L turbo build

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Old 11-21-2011, 02:53 PM
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these lsx boat builds are wicked. I like it with the truck intake. Is that going to stay?
Old 11-21-2011, 05:32 PM
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No truck intake for me haha
Old 11-21-2011, 05:44 PM
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Love the machined tank!! Awesome work on the mill! Did you write the program? I only wish we had a CNC mill where I work. I have 5 CNC swiss lathes I program, setup, tool and run but no mill, damn it!!! Keep up the great work and I look forward to seeing this become a reality soon. Best of luck on your new job.
Old 11-21-2011, 10:56 PM
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WEAK!!! Hahaha, joking dude, it looks sick as hell! Btw, this is Brandon (Jessie's friend with the Vette). Don't know how I stumbled across this, but I'm definitely subscribing to the thread! As for the injectors...I'm currently running 48lb injectors and putting down ~525 to the wheels. They are pretty much maxed out, and I'll be upgrading soon. But with your goals and running e85, 80-85lbs should be good.
So no longer working in the glorious town of Moberly? I may need some of your machining skills when I tackle my LSx swap in my Dakota, hahaha.
Old 11-22-2011, 08:50 AM
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Originally Posted by tsnow678
Love the machined tank!! Awesome work on the mill! Did you write the program? I only wish we had a CNC mill where I work. I have 5 CNC swiss lathes I program, setup, tool and run but no mill, damn it!!! Keep up the great work and I look forward to seeing this become a reality soon. Best of luck on your new job.
Thanks for the words of encouragement man. They have/had Solidworks with a Mastercam add on. I drew the geometry for the tank and programmed it with Mastercam. Pretty straight forward. I actaully used the "raster to vector" tool which lets you bring in a jpeg (picture) and the software will trace the outline of the pic. I dont have much experience with swiss type machines but I know theres plenty of work for that style machine out there. I wish I had space (and $$$) to have a lil 3 axis mill so I could do some custom work like that emblem for people on here. Im sure I could almost make a full time job out of that My old job will remain a mystery to me. I cant understand what the deal is/was there. I could go into detail but I dont think anyone really cares. Oh well, I'll be in the aerospace industry as a CNC programmer soon. Start Dec. 5th.

Originally Posted by badblueZ
WEAK!!! Hahaha, joking dude, it looks sick as hell! Btw, this is Brandon (Jessie's friend with the Vette). Don't know how I stumbled across this, but I'm definitely subscribing to the thread! As for the injectors...I'm currently running 48lb injectors and putting down ~525 to the wheels. They are pretty much maxed out, and I'll be upgrading soon. But with your goals and running e85, 80-85lbs should be good.
So no longer working in the glorious town of Moberly? I may need some of your machining skills when I tackle my LSx swap in my Dakota, hahaha.
Idk how but as soon as I saw your user name I thought it might be you lol. You probably found it will looking for Dakota swaps in the hybrid section lol. I think Im going to go with the 85lbers.

No, actually I will be turning in my notice within an hour or two or writing this post. My hopes are that they get pissed and just send me home, but Im giving them a weeks notice. You've worked in Moberly and have seen it for yourself. I'll just leave it at that

Well I cant garauntee that I'll have access to any machines when you tackle that build but I can try to be of help to you lol. I wanna see this vette sometime.. and maybe then we can have an intelligent conversation while im not liqoured up and dressed like Abe Lincoln HAHA
Old 11-22-2011, 12:02 PM
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I live in StL but spend my summers at LOTO. I would love to stop by and see your build when you get it on the water. I was thinking about doing a similar jet boat build myself until the 72 442 fell in my lap about this time last year.
Question on turbos for boats. Is there an advantage using a single T76 vs twin "ricer" size turbos for modest (under 10psi) boost levels?
Also, guessing these are the same headers?
http://www.ebay.com/itm/LS1-LS6-Stai...item1e68910486
I actually had a GTO oil pan that I sold a while back. Any thoughts on using the front sump TBSS pan? I can get one of those cheap and the profile looks like it might make an even better marine sump.

Last edited by garys 68; 11-22-2011 at 06:32 PM.
Old 01-13-2012, 10:19 AM
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Looks great!!
Old 03-31-2012, 08:59 AM
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Wow back from the dead. I haven't updated this in a long time. Here's some of the slow but steady progress made over the winter.

Made a custom pulley set up to run the alt. in the back off the driveline.





Got the engine mounted and plumbed for the most part.



Started wiring the engine.



Started puting the interior together









Some cool pics of the boat next to ZMG00CAMAROSS






Also got the cam and valvetrain installed.

Slow but steadily the boat is coming together. A few minor things to finish and it'll be on the water. I need to get the ecu flashed and was wanting to have Frost do it but I get no response to my emails.... so what other tuners have you guys had experience with????
Old 03-31-2012, 09:10 AM
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I should also mention that funding is keeping this build NA for the first half of the summer. I've become a little torn on what will be supplying the boost though. I'm sure somebody might wanna slap me but ive been lookin into a whipple haha. I think I'd get more power out of a turbo setup. Haven't done much research. Opinions welcome lol.
Old 03-31-2012, 09:29 AM
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such a cool build man! do you mind if i ask how much a race boat shell like that usually costs? looks like a fun build to do!
Old 03-31-2012, 01:10 PM
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Depends on what you're looking for. I would say that you should be able to ge a decent shell with a trailer for $900-1500.
Old 03-31-2012, 01:18 PM
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thats sick! i wanna get into this now lol
Old 05-27-2012, 02:05 AM
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Some progress to update. Got a little farther with interior and pretty much have the fuel system put together. I got my fuseblock kit from current performance and have the harness pretty much wrapped up. Just need a MAF and a tune and I should be able to get it on the water.











I know the A1000 is a little over kill but atleast I'll never have to worry about fuel lol.
Old 06-18-2012, 04:16 PM
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this build looks wicked man.. in the starting of one myself good work!
Old 06-18-2012, 04:41 PM
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Not Going to lie this boat seen water last weekend. Has some issue but that's to be expected first time out
Old 06-19-2012, 10:43 PM
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Sure did. Got some teething issues to solve for sure!!!

Looks purdy though





Funny video

Old 10-04-2012, 09:02 PM
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Update?
Old 10-04-2012, 09:47 PM
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I know he has vids. I yell at him.
Old 10-04-2012, 10:00 PM
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I'm Doing Similar 87 Chris-Craft Scorpion 210 .

Doing a 5.7 LS1 With Truck Cam , and Truck Intake .

My Big Problem is trying to Find a Proper Marine Alternator .
Old 10-05-2012, 10:01 AM
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I just built a bracket and used the old alternator on mine . You can probably make the one you have work , but it will take a little work .


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