I will tell you exactly what you are in for if you watch this video, so there are no surprises except what engine we actually got. We have been looking for an engine for the v8 ski with a particular quality that is also within the budget. We will be searching the wreaking yard for said elusive engine. Finding the seemingly perfect junkyard jewel of an engine. Removing the engine with much difficulty, and dealing with challenges that we didn’t see coming. Taking it home, investigating the condition of said LS engine by tearing it down. And investigating further if this engine came with highly sought after cylinder heads. All in the typical JS brothers style, fast paced editing and normal JSB haphazard antics.
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big thanks to Holley helping out on this build
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An aluminum 5.3 would pair well with a side of small turbo at 5 or 6psi. Should be good for nearly 600 crank with a healthy cam and valve spring upgrade at 7000rpm.
Damn where ya been?
5.3 better for what you are doing.
Is the fan bolted on to the water pump
Let me put on my internet expert hat…
Lemme tell you somethin, you think 85 is fast? I've got a 1991 Kawasaki SuperChicken that doesn't run yet but when I was towing it home, I got the truck up to 55mph, which is the same as 85mph so its really not that fast.
For real though, man 85 has got to feel like light speed. I've serviced and repaired a lot of skis, everything from gp1800r's, ultra 310x's, rxt-x-300s, down to 94 wr3gp's and 587 seadoo sp's. Each one is fun in its own way, but not a single one will touch 80, This thing of yours is absolutely incredible and so cool.
Keep doing what you're doing guys, always exciting to see what you're up to.
You need to find an impeller that will let you take advantage of the extra torque.
Prop up mang
If you leave it NA, on the scales it's over 100 lbs lighter. An aluminum block is the desired unit in a small hull like that. Cool build!
That oil pan is worth selling, don't scrap it
Good score, should have the high compression pistons as well.
Engineers only get along with other engineers!
And even then they argue endlessly!
I work at a mine and today all the engineers came back to work!
Talk about LOUD!
I’ve had a 5.3 before in a 2008 Silverado with 315 hp. I know of some guys that have swapped the 5.3 into 80’s Camaros and Trans Ams and slapped on turbos. I can’t wait to see how this one turns out!
I'll be pulling the same engine out of my wife's old 06 Denali this spring. Frame rails are gone. I'll be replacing my boat's vortex 350 with the lh6.
Just wondering is your Toyota the T-100 or a tundra v-8 or v-6,I have the first year tundra and is very similar to T-100,thanx…….
One other thing I was thinking is, the difference in base power between the 5.3 and the 6.0 is only 15 to 30 hp depending on the variants. They both have the exact same 3.622 inch stroke. The 5.3 has a 3.78 inch bore. The 6.0 has a 4inch bore. The power gained from a difference in .22 inches of bore can easily be made up by tuning and boost. The performance advantage of the 6.0 liter over the 5.3 liter isn’t substantial enough for anybody to be obsessing over. I think it is just a psychological thing where everyone feels like they need to have the bigger engine. There are so many 5.3’s out there making serious power. If I had my choice to build a booster ls I would always pick the 5.3. There are so many more of them available and they are significantly cheaper than the 6.0’s. Building boosted or big power engines can increase the likelihood of engine damage or failure. I would rather buy replacement or back up engines that only cost $300 to $600 that are way more plentiful and available with a better chance of finding one with low mileage, than an engine that is $600 to $1200 and becoming harder and harder to get your hands on where you don’t have as much of a selection or chance of finding a low mileage engine. If the goal is to build a naturally aspirated engine and you are trying to make as much power as possible then the advantage of a 6.0 is a bit more obvious, but if building a boosted setup, the advantage of the 6.0 just doesn’t seem as critical. You can gain up the difference in performance easily just by tuning not to mention you will have extra money for better parts by buying a cheaper engine! Bottom line, if anyone commenting that you should have gotten an aluminum 6.0 is an idiot for thinking those are just laying around and readily available in junkyards everywhere lol
I would totally buy a spare engine to swap it into a junk mustang
Basically about a year ago I bought 2 shirts to support the channnel. One wash ripped the entire decal off. I would love to get a nice shirt but I’d rather just donate money if the shirts are garbage.
I can tell you guys don't work on vehicles often because GM, especially trucks and SUVs are the absolute easiest vehicles made to work on. Go climb under a Ford and see how you like that engineered goodness. One thing about going fast on water. Each mile per hour is hard fought and every pound saved is well worth it. Y'all are heading in the right direction. Anyone wanting to really go fast would toss the pump and have a chopper sticking out the back. Then the hull will be way over powered.
Grate finally going with a TURBO. Now need to go up on RPM 8000 or more and you see does miles reaching your goal
Finally had the time to watch this video and you guys didnt dissappoint. Not that you ever do, but this one really hit the spot, it had just the right amount of shenanigans. Loved to see the weight… Oh, and you guys would sweat bullets to learn what an "LS" costs here in euroland…
I am actually a bit pissed off there is still, as far as I know, no credible and good value marine variant or conversion kit of LS motors… still running variants of the good old smallblock. Kind of ridiculous thinking I could then repower my boat for a few hundred dollars and gain horsepower instead of it costing 10 grand+ if I want to do it as it is now…
Looking forward to seeing the results when the weather warms up for you!
Ls-1 has 241 heads. 243 heads were on the Z06 motors I believe
The Chevy 98 -99 Silverado 4.3 with twin turbos boost it to 26 psi and hold onto your nuts.
good job guys – it only goes 85 mph
Great episode guys, Milo was very quiet, but he really liked working on his engine in the background, just like his dad.
I really liked the junk yard footage, hope your back is ok from all that pulling, lifting and dragging.