There is not a single example of those engines installed in a boat on that web site.

My failure, sorry.

I wish I was smart enough to understand any of it. Laughing. But I called them today and asked a lot of questions and either they are really good at answering or its real or both haha. I cant imagine not after talking to them, but who knows. I cant afford it, unfortunately, but was aweseme to talk to them. I asked abotu the 8000 rpm... i was told that they turn between 6000 and 6500 in most builds at max rpm, but engines are capable of 8000+ due to quality. They said the transmissions (maybe my word not his) only run to 6600 for a #6 whatever that is which is what they use. He said something about #6 and #8. I dont know. Maybe someone smarter than me should call, but it was really cool to speak to them. They have a demo boat they said i can go for a run in thats 1500hp. they offer 50% financing but only carry it out 3 years at a bad rate and not long term, so it doesnt fit for me. And not really disclosed but to finance it you gotta have a service plan which is about 1000 a month for both engines.I cant. However, the novelty alone - if its affordable - is absolutely cool as hell. They are huracane engines that they are using and they are completely redone for marine use. I asked about valve and cam timing which I was warned with and they said its all converted and explained in some long details I dont want to repeat wrong and I didnt understand what he meant anyway, lash, and so forth.. They arent related to the other palm beach co with bad reviews. I think poor planning on names on their part, but i dont much care. After talking to them, I think the go fast boat world just loves BBC engines and american muscle. Hell, i grew up on 60's mustangs, i get it. Same boat guys have badass chevelles and vettes. I think euro power scares people that dont know, or get it and i think thats the impression i got from them about people too. People only like what they know. A lamboghini isnt for everyone i guess.

theyve been engineering these for about 5 years he says. still arent pushing them out yet. They also have a lamboghini shop in west palm and been fixing them for years.. He told me service and parts are very affordable, crazy dependable, and low maintenance. Seems nuts right? But with a service plan, i dont know. I cant imagine feeding me a line. They'd lose right?

Alas, someone with some brains should call them. Im out, i cant afford the monthly, especially with a service plan, but man, the concept and idea.... it takes me back to my childhood watching countach and muiras. Damn cool. Just damn cool. Oh, he said they run digital helms, no analog guages. Said somethign about 5 wires to communicate to front from back, makes easier to troubleshoot, maintain, and stuff, I dont understand that part, but whatever.

Tthey answer when i called, the man knew his stuff for all i could tell. I dont remember his name, i should have written down. I read a lot of the stuff here and asked what ppl said. i didnt get tossed around to voicemail jail, no answering service, legit people. Thats all i can say. I wish i could do it, they sold me. I just cant afford it and will go back to used set of 496's i found for 24k. . Sad, but affordable.

I will have a set of 502's for sale the next couple week, if this isnt the wrong place to list it or ask? Let me know if anyone wants them. No clue if rebuildable, could be, maybe not, but both locked tight as a drum. Make me an offer.

Try some 406 LS engines with aluminum manifolds , probably around 450 hp and less weight.

The original 35 Awesome and Mistress came with 350ci/280hp with Trs and borg Warner trans.
With an upgrade to the 370 hp.

My buddy Todd on here years ago bought a 94’ 38 top gun with stock merc 525 sc and Trs with trans. It was a 70 mph boat.

Repowered with some 572/900s and 3as and it still was a mid 80s boat. It wasn’t until he cut the cabin and 1000 pounds out of the front of the boat that it became a 95mph boat.

Moral of the story those old Cigs are Heavy in the nose.

The pitch is the same thing as the gear ratio essentially. The 8000 rpm engine could turn a 22” pitch prop and go as fast as a 6000rpm engine turning a 29” pitch prop. The 400lbs ft 8000rpm V10 would make as much thrust with the 22” pitch prop as a V8 with 523ft lbs and a 29” pitch prop.

will the 496 engines direct bolt to my bravo one outdrive that the 502 is mated to? If you know. Thanks. I think this is the way i am going, but considering self install if there arent too many "gotcha's". I can bolt up, plug in, and rig up if its 'meant to be there'.

No, it's not true.

As I already wrote, the diameter of the propeller affects the power with the fourth power, the revolutions with the cube and the pitch with the square.
Or like this:
- changing the revolutions changes the power with the cube.
- changing the pitch changes the power with the square.

As linear as it sounds, it would hold true, for example, for vehicles that are driven via wheels. My statement holds true for all vehicles that are driven by a propeller.
A propeller that would get 600 hp from an engine at 22" pitch and 8000 rpm would have to be very small in diameter compared to one that would get 600 hp at 29" pitch.

Look at my example again:
4900 lbs speedboat with LS376/480 engine
a.) 1.56 gear ratio and Signature LS5-15.25x22" propeller.
It was going 60 mph, the engine wouldn't get past 5600 rpm. It was obvious that there was no power.
b.) 2.04 gear ratio and Maximus-15.65x30" propeller. So far I've gotten to 70 mph, but I'm just getting the hang of it and the engine spins at 6000 rpm, but it will go even higher when I can drive it safely.

Draw this parallel with the record of diameter, revolutions and pitch and you will see that changing the pitch is far from enough. It is, but in a minimal range, when the revolutions are already very close to ideal and torque it is bigg enough.
Reggie knew very well why he replaced the 1.5 gear with 1.65 in some cases.

Nothing cheaper than BBCs for reliable power.

Stray from that too far and you'll be in a world of hurt. Used parts are largely based on BBCs.

Factor in a resale value.

Good used engines are an option. Mistress 35 ran 53mph with SBC TRS 280s and 64 with 370 BBC TRS.

I would just rebuild your 502s. Maybe get some Promaxx 290 heads. You'll make some good power reliably.

If you don't do your own work, none of this is going to be cheap.

$11000 for 2 BBCs around 500 HP.

https://www.offshoreonly.com/forums/swap-shop/385363-pair-500-hp-454%92s.html

I am wondering why you don't just rebuild what you have if all of the parts are there it won't be that expensive to rebuild. A lot less than buying new motors. and you'll have a nice reliable boat.

all the engine shops here are telling me 6-9 months before they could get to it, thats if I remove them. And no idea what will find once they are out. Both actually locked up and sat too long. Might not be enough there to rebuild. Seems like a downward spiral in costs and i was hoping to get it on the water sooner than later. time - unknown costs - no patience.