Finally Started the LS Swap
#1
Registered
Thread Starter
Finally Started the LS Swap
I have been researching and wanting to do the LS swap in a boat for a long time now, and as of this morning, the old SBC 350 has been pulled from my powerquest 230 conquest and the swap has started! The new motor is a fresh 5.3L with an LS9 cam and summit aluminum roller rockers. Im going to leave it fuel injected and hopefully find a way to get o2 sensors mounted in crusader manifolds. I have lots of stuff to figure out yet but the hope is to have it running by memorial day...
The following 6 users liked this post by Ryanw10:
CharlieWhiskey85 (02-17-2022), DrFeelgood (03-02-2022), Gimme Fuel (02-18-2022), IGetWet (02-17-2022), SabrToothSqrl (02-22-2022), TomZ (02-17-2022)
#2
Registered
Look forward to seeing the progress
#3
Registered
Cool project.
230 Conquest is a neat boat.
230 Conquest is a neat boat.
#4
Registered
Should be a fun project! There's a dude on YouTube who LS swapped a formula 242. Not sure if there is anything useful for you but here's the link to the channel
The following users liked this post:
hogie roll (02-17-2022)
#5
Registered
Those are great boats that handle the water great for their size, I grew up with an 89’ 230 conquest. My dad bought it brand new, we got to take the tour of the plant.....not big, but very cool. Good luck on the swap. I hope to see ya out there this year, we are just up the big pond in GH.
#6
Registered
Thread Starter
Got the motor set in place today so I can start figuring out motor mounts. For some reason I thought the mercruiser flywheel would bolt up but that was not the case, im researching now what the best solution here is going to be. The mercruiser bellhousing did bolt up nicely with the exception of the top bolt on the LS block.
#7
Registered
Saw o2 spacers/adapters other dsy on ebay for your exhaust. Lots of $$$$. Like $500 or more.
#8
Registered
I know torque convertors need spacer when putting TH350 behind a LS, may be similar with your flywheel issue
I would have thought spacer between manifold and riser would be cheap way to get O2 sensor in there, didn't realize $500
Have seen some home brewed ones if mill and right tap is available
I would have thought spacer between manifold and riser would be cheap way to get O2 sensor in there, didn't realize $500
Have seen some home brewed ones if mill and right tap is available
#9
Registered
Thread Starter
Looks like im going to have to get an LS flywheel and the mercruiser engine coupler will bolt to that. Summit has a flywheel for about $120 that im going to order. I saw those spacers for the o2 sensors on ebay, but im not willing to pay that much for them. Im hoping to get the riser's tapped, or possibly run open loop.
The following users liked this post:
Xcomunic8d (02-25-2022)
#10
Registered