Water Thunder Performance Airboat Engines

Chevrolet LS Specialists

Water Thunder Performance, Inc.
Phone: +1.321.508.5316
E-Mail:
1728 Agora Circle SE Suite A
Palm Bay, Florida, 32909, USA
Appointment Only, Please.

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Water Thunder Performance
Another nice little 442 but this one will be a surprise.

Another nice little 442 but this one will be a surprise.

 Comments: 5 Likes: 24 • 9:43am April 17, 2015
Russell K Aaron Jr.
Russell K Aaron Sr.
 Likes: 0 • 10:06am April 17, 2015
Bill Buckner
Keep them coming
 Likes: 0 • 10:07am April 17, 2015
Scott Stanley
Can't wait to see it run
 Likes: 0 • 10:29am April 17, 2015
Dane Oliver
Ya. We want more we want more
 Likes: 0 • 1:14pm April 17, 2015
Johnny Russ
Those pistons would be unacceptable if they were mine in my motor
 Likes: 0 • 7:41pm April 18, 2015
Water Thunder Performance
Should have these 3 bad boys done soon. 582, 482 an a 442

Should have these 3 bad boys done soon. 582, 482 an a 442

 Comments: 5 Likes: 60 • 10:00am April 16, 2015
David Spencer
582?? ls series?? NICE !!!!!
 Likes: 0 • 10:12am April 16, 2015
Robert Hayes
Nice
 Likes: 0 • 10:17am April 16, 2015
Brad Verdin
How much for a Motor like this
 Likes: 0 • 10:57am April 16, 2015
Dane Oliver
582 big block series ..lol. throw mine on the tester ..let's do this.
 Likes: 6 • 11:28am April 16, 2015
James Gabbard
No matter how many cubes it's never enough
 Likes: 0 • 10:47pm April 16, 2015
Water Thunder Performance
This is a 442cui EFI LS motor we are building for a customer in south FL. This girl will be a beast.

This is a 442cui EFI LS motor we are building for a customer in south FL. This girl will be a beast.

 Comments: 17 Likes: 47 • 5:58pm April 15, 2015
George Bryant
Bad to the bone Dave. Is that beast going on an Airboat. If so maybe they can come to lake George and out run Tony480. His head is getting to big with this fast ride boat. Before long he will need to buy a convertible. Lol Tony Long
 Likes: 2 • 7:25pm April 15, 2015
Tony Long
LoL..no big head here. But anytime you want to know the pecking order I'll be kind enough to show you. Hehe
 Likes: 0 • 7:27pm April 15, 2015
George Bryant
Me and my new ride boat me ready. Lol
 Likes: 1 • 7:30pm April 15, 2015
Tony Long
Hell me and David Hartz gotcha covered.lol
 Likes: 0 • 7:31pm April 15, 2015
George Bryant
I know those water thunder rockets of brads and chucks do for sure.
 Likes: 0 • 7:32pm April 15, 2015
Water Thunder Performance
George we were dying to race your ride boat.
 Likes: 0 • 8:06pm April 15, 2015
George Bryant
I hear ya Dave yall got them covered for now. It might never get to the top but damn it looks and sounds cool as hell.
 Likes: 0 • 8:26pm April 15, 2015
Tony Long
Bring that ride boat to the lake George Bryant and see where it stands...lol
 Likes: 0 • 8:27pm April 15, 2015
George Bryant
Tony Long
 Likes: 2 • 8:28pm April 15, 2015
George Bryant
Lol
 Likes: 0 • 8:28pm April 15, 2015
Water Thunder Performance
To be honest no doubt it will eventually out run everybody. That kind of money will always win in the end not to mention giant cubic inch motors with blowers will always prevail over a small block. I just wish I could find someone who wants to win that badly an can afford it.
 Likes: 4 • 8:31pm April 15, 2015
Water Thunder Performance
For now the little 428 small block much to my amazment is still hanging in there.
 Likes: 1 • 8:32pm April 15, 2015
George Bryant
I hear ya dave. It's priced the poor boy right out. I can afford a foot race if yall want to line up. :)
 Likes: 0 • 8:39pm April 15, 2015
Tony Long
I'll smoke you in that too George Bryant..throw a biscuit down and I've got it won. Lmao
 Likes: 1 • 8:44pm April 15, 2015
George Bryant
Put some gravy on it and me dave might have you covered.
 Likes: 2 • 8:46pm April 15, 2015
Johnny Russ
What groundrattler has done is raised the bar so high that no can compete with the money or wants to spend it so who does he race when no one shows up
 Likes: 0 • 8:17am April 17, 2015
Johnny Russ
All you got to do is find a girlfriend or wife to spend the money for her better half better stand back aways when the better half doesn't agree
 Likes: 0 • 8:22am April 17, 2015
Water Thunder Performance
One piece billet LS valve covers.

One piece billet LS valve covers.

 Comments: 7 Likes: 22 • 11:14am April 14, 2015
Tony Long
Damn ..i want a pair
 Likes: 0 • 11:30am April 14, 2015
Mark Melhado
Dave how much do they cost?
 Likes: 0 • 11:34am April 14, 2015
Johnny Russ
How is that 502 coming you mentioned on s/a what crank did you go with
 Likes: 0 • 11:36am April 14, 2015
Mike Loggins
$$$$$
 Likes: 0 • 11:48am April 14, 2015
Wayne Holmes
Isn't that the replacement on matts boat
 Likes: 0 • 3:35pm April 14, 2015
James Helms
Not cheap Mike Loggins lol
 Likes: 0 • 6:40pm April 14, 2015
Brandy Haney
I heard around 900.00 a set
 Likes: 0 • 10:26pm April 17, 2015
Water Thunder Performance
This is the 2nd time I was servicing a RHS motor with comp lifters and found loose guide pins. So we're removing the comps and installing Murrells. Your lucky or due diligence is paying off when you find a defective lifter before it fails

This is the 2nd time I was servicing a RHS motor with comp lifters and found loose guide pins. So we're removing the comps and installing Murrells. Your lucky or due diligence is paying off when you find a defective lifter before it fails

 Comments: 10 Likes: 40 • 5:06pm April 13, 2015
James Helms
Glad you caught those Dave could have been bad... Old girl has over 250hrs and just a lil tune upð
 Likes: 0 • 5:11pm April 13, 2015
Angie Matthews-Clemons
I say it is the diligence ;)
 Likes: 0 • 5:49pm April 13, 2015
David Spencer
Whats the signs of a failing lifter... jst curious
 Likes: 0 • 5:51pm April 13, 2015
Water Thunder Performance
The tie bars have axles that some are riveted and some are screwed in the ones that are screwed in tend to loosen up if the guide bar falls off you can loose everything. Lifter a failure and hydraulic ing a cylinder are about the two most destructive things you can do to a motor
 Likes: 1 • 6:18pm April 13, 2015
Johnny Russ
Never have had a problem with crower hyd roller or solid roller
 Likes: 0 • 6:19pm April 13, 2015
Water Thunder Performance
I have always liked crower lifters and we offer crowers as a upgrade but most customers. Choose not to upgrade because their around twice as much..
 Likes: 0 • 7:45pm April 13, 2015
James Helms
David Hartz says a lot when you call up a costumer that has a 2 year old engine and say you heard of some problem folks has had and fix it just to be safe...
 Likes: 0 • 7:48pm April 13, 2015
Dane Oliver
James Helms. U better make sure I got sum ja-bronies in mine. Lol. Ille pay for the upgrade now. I need bulletproof
 Likes: 0 • 12:45am April 14, 2015
James Helms
Dane Oliver you have the nicest stuff
 Likes: 1 • 6:00am April 14, 2015
Johnny Stanley
Crower, and I sky red zone hard to beat
 Likes: 0 • 7:48am April 14, 2015
Water Thunder Performance
Testing some Brodix heads on a RHS motor. I realy like these Brodix castings and components over other stuff I have seen.

Testing some Brodix heads on a RHS motor. I realy like these Brodix castings and components over other stuff I have seen.

 Comments: 2 Likes: 20 • 1:39pm April 13, 2015
Bill Buckner
Looks nice
 Likes: 0 • 1:57pm April 13, 2015
Water Thunder Performance
Yep the runner volume and flow numbers appeal to me. Besides the fixed another problem I was having with the RHS heads.
 Likes: 0 • 6:20pm April 13, 2015
Water Thunder Performance

540BBC airboat motor started today. Tomorrow the propeller will be here so we can finish testing and tuning it.

 Comments: 15 Likes: 41 • 6:22pm March 24, 2015
Cody Allen Scholer
What's the name on the bill?
 Likes: 0 • 6:27pm March 24, 2015
Bill Snyder
If it has 540 in it.....it must be an aircraft guy converting to the dark side..that way he still feels connected
 Likes: 0 • 6:46pm March 24, 2015
Matt Sevy
Rob Friedel this should be your next motor. ;)
 Likes: 0 • 7:27pm March 24, 2015
Jack Wiggins
Didn't think Dave did big blocks
 Likes: 0 • 7:34pm March 24, 2015
Jim Hulbert
Donald Thorsen
 Likes: 0 • 7:56pm March 24, 2015
OneWith TheUnderdogs
How much hp?
 Likes: 0 • 8:16pm March 24, 2015
Lance Rowe
540....nice touch
 Likes: 0 • 8:29pm March 24, 2015
John Mossow Jr.
Shane Dickson Steven Andrews
 Likes: 1 • 8:46pm March 24, 2015
Shane Dickson
Shoulda went that route the first time
 Likes: 0 • 8:47pm March 24, 2015
Rob Friedel
Just ordered one from MoonDoggie.... Couldn't get these guys to return a call. Bbc should b cool!
 Likes: 0 • 9:34pm March 24, 2015
Scott Lehrmann
Very nice! Would love to see some video of the last unlimited race if you have any.
 Likes: 0 • 9:41pm March 24, 2015
Dane Oliver
Jack Wiggins.... David Hartz has stepped out the box now. Lol. We hav a new area of Concern for em ;)
 Likes: 0 • 4:01am March 25, 2015
Water Thunder Performance
Hey dane she needed way more injector than we thought,,, meaning made more power than we expected,,,, so we ordered even bigger injectors for yours and we're also upgrading your trigger resolution. We have a few BBCs going together now. The EFI is nice zero run on and crazy throttle response.
 Likes: 1 • 9:10pm March 25, 2015
Dane Oliver
That's jus wonderful news. Lol can't wait.
 Likes: 0 • 9:24pm March 25, 2015
Bruce Fingerson
Comin soon dec 25 2015 lol
 Likes: 0 • 11:54pm March 25, 2015
Water Thunder Performance
Getting Brads Unlimited boat Ready.

Getting Brads Unlimited boat Ready.

 Comments: 1 Likes: 50 • 2:10pm March 19, 2015
Wayne Holmes
Looks awesome Dave
 Likes: 0 • 6:44pm March 19, 2015
Water Thunder Performance
Freshin Up a small 464 cubic inch RHS from 5 or so Years ago. Getting ready for the new season.

Freshin Up a small 464 cubic inch RHS from 5 or so Years ago. Getting ready for the new season.

 Comments: 0 •  Likes: 18 • 11:43am March 5, 2015
Water Thunder Performance

Well it looks like we found out how much nitrous a RHS block can handle. By the looks of all the cracks I would say about a 100 HP less then what we run. All the cracks follow an original cast line, casting lines are stress risers. So it looks like the next BIG NITROUS RHS motor we build were going to have to polish all of the casting lines out of it.

 Comments: 8 Likes: 24 • 4:38pm February 27, 2015
Cody Allen Scholer
Surface condition is everything for crack propagation!
 Likes: 0 • 5:22pm February 27, 2015
Eddie Eaton
Or build big block js
 Likes: 0 • 5:37pm February 27, 2015
Bjorn Lango
Are these block stress relieved after casting?
What about an artificial aging process or an uphill quench process to help block strength.
 Likes: 0 • 6:31pm February 27, 2015
Water Thunder Performance
Eddy a monkey can go fast with a big block oh wait we won the championship with a small block. Nope not impressed yet by any of the big blocks.
 Likes: 1 • 11:14pm February 27, 2015
Eddie Eaton
Brad said get big block blower motor in ur head better call David Hartman start asking questions :)
 Likes: 0 • 7:03am February 28, 2015
Water Thunder Performance
All you big block guys should be dominating Eddy if a 427 SBC can out run a big inch all aluminum big block I'm not empress ed yet. You all just need to spend more money I guess. I wonder how much the new BBC with a blower cost. All that to out run a 2nd hand 427 to me the 427 is waaaaaay more empressive.
 Likes: 0 • 10:22am February 28, 2015
Eddie Eaton
If I wanted run unlimted I would nt have pump gas motors I run acy and nitro mix like ur sbc does duhhhhh
 Likes: 0 • 10:30am February 28, 2015
Eddie Eaton
Let's see one ur pump gas motors like Bronson Defoe beat me bub then u flap about something lol Nastyboytwo Bob Ryder out ran brad every race but 1 due too red light LMAO on Gas so that about sums that up
 Likes: 0 • 10:33am February 28, 2015