Stuff you need to switch over to an LSX platform.

[blazeracer]

I"ll start with a GREAT exploded view of the LS series engine used my Crusader Marine, with part numbers.

http://www.crusaderengines.com/NewFiles/60parts.pdf

A PTO Adapter, now readily available with the correct bolts.

http://www.berkeleyjet.com/p-14667-power-take-off-adapter-ls1-chevy-1310-flexplate.aspx
http://www.berkeleyjet.com/p-14871-ls1-14mm-pto-1310-adapter-bolt-kit.aspx

Your LSX exhaust on the cheap for guys with engine covers.

http://marineengineparts.com/shopsite_sc/store/html/page557.html

Somewhere I've seen makes a spacer that goes between the manifold and riser to insert an O2 sensor to run closed loop EFI. Another option is to just carburate it with a Victor manifold.

Some motor mounts that can be adjusted to fit.

http://www.race-mart.com/Trans-Dapt_Performance_Products-TDP-4506.html

Need a three point Chevy bell housing, for mine anyway. A four point would work too.

http://www.hardin-marine.com/p-13732-sbc-bbc-3-point-bellhousing.aspx

And this one allows the use of a reverse wound starter.

Anyway, a little info I've dug up to pass on.

GONNA ADD MORE TO THIS AS I FIND IT

Oil Filter Relocation Kit

http://www.ebay.com/itm/New-TD-Oil-Filter-Relocation-Kit-1998-02-Camaro-LS1-/280436712631?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item414b54a4b7#ht_2782wt_1353

LS marine starter

https://www.dbelectrical.com/p-8259-new-starter-pleasurecraft-60-l-marine-9000887-ra122019.aspx

Gauge adapters. The kit has what you need for both oil and water.

http://www.oreillyauto.com/site/c/detail/EQU0/9848.oap?tc=1&ck=Search_N0824_-1_-1&pt=N0824&ppt=C0391

torque specs

http://www.ls2.com/boggs/torques/enginetorques.htm

 

[blazeracer]

Pick-a-Part in Hutchens (I20 and I45 area) gets $235 for an intake to oil pan LS motor minus the harness and computer.

think.gif

 

[blazeracer]

FormulaZR's boat, copied from another board

This is my 2nd LS1 swap into a jet boat and this is by far the "cleaner" of the two. You can search my old threads for that if you want.

Specs:
21’ Liberator with Dominator pump
383 LS1
238/244 Hyd. Roller
MTI Stg 3 241 Cast Heads
Yella Terra Rockers
Rewarder Water Injected Through Transom Headers
Edelbrock Performer Intake
850 Carb
MSD 6LS
Closed Cooling System

http://www.youtube.com/user/FormulaZR#p/u/2/KRyGojKq3SI

According to the thread it's running 5,800 rpm with 4 peeps in the boat at 70 mph. Not bad for a 21ft boat with a small block!

Two questions though, LSA/lift on the cam and impeller?

ORIGINAL THREAD...
http://www.planetlsx.com/forums/showthread.php?t=5020

There's a thread for it on THB too, but the above has better pics and has post "on the water" info.

 

[TintMan]

hey bud...you talkin to yourself? Until there are no more BB chevys why bother?  :smile14: jus sayin...

 

[blazeracer]

Just "writing it down" in case I need the info later. Same power for 200 less pounds compared to a big block. And with long blocks being $235 at the wrecking yard they're affordable.

The LS3 cam is .002 smaller than the one Formula used. Jus sayin..

 

[TintMan]

Just "writing it down" in case I need the info later. Same power for 200 less pounds compared to a big block. And with long blocks being $235 at the wrecking yard they're affordable.

The LS3 cam is .002 smaller than the one Formula used. Jus sayin..

Just messin with ya...tequila and beer last night. I'd like to see ya do th LS thing...seems cheap enough! :smile16:

 

[blazeracer]

Just "writing it down" in case I need the info later. Same power for 200 less pounds compared to a big block. And with long blocks being $235 at the wrecking yard they're affordable.

The LS3 cam is .002 smaller than the one Formula used. Jus sayin..

Just messin with ya...tequila and beer last night. I'd like to see ya do th LS thing...seems cheap enough! :smile16:

It's cool Scott. You can get a ton of power out them being N/A, add more with a centrifugal charger and keep it tucked under the hood able to run the lake all day long on a tank of gas. And as a reminder, with your droop on it, it shoots a HUGE roost!! LOL

 

[blazeracer]

More LS1 info. The midly modified LS1 is a 5.7 (347cid for LS1) that has a FAST intake, Comp Cams XR265HR cam, springs, retainers and pushrods. The bottom end is bone stock. Even naturally aspirated this motor combo has a potent 446hp. Add a Vortech and look out!!

 

[Gold Member]

Well Get R Done!! clap.gif

 

[blazeracer]

Saving up a few retirement checks...

http://www.ebay.com/itm/vortech-s-trim-5-3-intercooled-supercharger-ls-ls1-4-8-6-0-silverado-turbo-gmc-/220887092384?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item336de58ca0

 

[Last Mohecian]

You know my opinion on this.  Let me know if you need any help.  I'm sure Chad will be there too.  I think you can sell all that Ford stuff and complete the swap with almost nothing out of pocket in the end.  I'm surprised you didn't buy that used Victor and MSD-6LS off of ls1tech.

 

[blazeracer]

You know my opinion on this.  Let me know if you need any help.  I'm sure Chad will be there too.  I think you can sell all that Ford stuff and complete the swap with almost nothing out of pocket in the end.  I'm surprised you didn't buy that used Victor and MSD-6LS off of ls1tech.

I'm gonna go EFI with it. That will make upgrades easier later. I'll go back to the yard that had the complete setup with harness and computer for $650 and go from there. I can have a FAST intake and TB on it with an LS3 cam and Vette springs by March and have a damn good and reliable runner that should easily be over 400hp and a good 200lbs lighter than the 460.

 

[Gold Member]

What rpm will it make the 400hp?

 

[Last Mohecian]

You know my opinion on this.  Let me know if you need any help.  I'm sure Chad will be there too.  I think you can sell all that Ford stuff and complete the swap with almost nothing out of pocket in the end.  I'm surprised you didn't buy that used Victor and MSD-6LS off of ls1tech.

I'm gonna go EFI with it. That will make upgrades easier later. I'll go back to the yard that had the complete setup with harness and computer for $650 and go from there. I can have a FAST intake and TB on it with an LS3 cam and Vette springs by March and have a damn good and reliable runner that should easily be over 400hp and a good 200lbs lighter than the 460.

If you are going efi you need to add something like HP tuners to your list or plan to take it to somewhere for a tune.

 

[Gold Member]

I just don't see how a small block is going to perform like the big block in a heavy cruiser. I know the weight will help but it will be lacking some of the low end torque needed to turn the size impeller that you would want in a cruiser. You will probably need a B impeller to make the small motor perform right and then you will be cruising at higher rpm and the take off won't be so good. I maybe wrong but that's my 02. If you put a charger on it that would be a different story.

 

[Last Mohecian]

I just don't see how a small block is going to perform like the big block in a heavy cruiser. I know the weight will help but it will be lacking some of the low end torque needed to turn the size impeller that you would want in a cruiser. You will probably need a B impeller to make the small motor perform right and then you will be cruising at higher rpm and the take off won't be so good. I maybe wrong but that's my 02. If you put a charger on it that would be a different story.

Only one way to find out.  There are several documented boats that have made the swap and in all the cases I have read about the small block out performed the Big block it replaced in all aspects.  I'm only talking about lake boats not light weight race boats. 

 

[Gold Member]

I cold see that in a smaller boat but that is a heavy boat James has. Guess we will see?

 

[spd500]

Low end torque really shouldnt matter much in a boat engine . The main question is how much horse power you can make at a specific RPM , and matching the impellor to that RPM/horsepower combination .

 

[Gold Member]

Torque is what it takes to turn a bigger impeller. So if I was to take  a 289 ford that made 500hp at 800rpm and put it in the place of a 460 that made 500 at 5500 the boat would run as fast and quick? You would have to put a D impeller in it and it wouldn't even get a big boat like James's moving.

 

[spd500]

True , thats what I said about the HP and RPM . But you will never find a 289 that makes 500 hp at 800 rpm  crazy.gif
While I do agree that everything on Fords is screwed up , even they are not that far off base . If the 289 made 500HP at 800 RPM it would probably make 1500 at 5500 rpm .