Steve 1

No different than throwing a fat friend overboard or running with a half tank of fuel .

glassdave

guess it gives a whole new meaning to "choose your friends wisely" lol

Uncle Dave

Agreed lighter is always better.

UD

Uncle Dave

Actually getting all the accessories correct IS difficult and expensive.

Problem I have with that block in the link the end result wouldn't be anymore HP that I built with a standard old school well built small block chevy that was cheap enough to build that I could afford all the nice marine stuff.

500/500 is well within any small block 400-434 and super affordable if you know which parts to buy will pretty much run for about a decade before a rebuild.



UD

HaxbySpeed

The CT525 had some issues early on but I think it was mostly people getting used to the new technology. It does require good fuel but has proven itself in hours of endurance racing at WOT. It's the corvette LS3 base with a different cam and carb'd intake.

The components needed to marinize it are actually very easy to find and quite affordable. You can get the complete front accessory set including power steering pump, alternator, pulley's, belt, tensioner, etc. for under $800. The ignition controller is under $400 and kicks the chit out of any aftermarket distributor set up. A set of decent aluminum exh manifolds is under $1000. Get an oil cooler and remote filter head from CP for a few hundred. It's all out there for anybody that actually wants to do it.

If anyone's thinking about getting an LSA, I can get you a killer deal on zero hour floor demo from the boat show. 100% complete set up for a Bravo install.

Uncle Dave

Whose manifolds would you use for under 1K and you are talking about a multi belt vs a serpentine kit correct?

UD

HaxbySpeed

It's a GM serpentine set up. Same one used on Corvettes. I haven't tried it but you could probably modify the optional AC mount that it comes with for a raw water pump. You can get the manifolds from Kodiak, and Marinepower. Production marine LS engines have been around for 5+ years. Everything you need is available and if you stick to GM it's cheap.

Uncle Dave

Never seen these manifolds in a "real" 500HP package, but I must not have been looking.

Im mulling in my head what it woud cost to duplicate 2 ILmor 570's or better yet go aluminum.



UD

HaxbySpeed

We run all our engines with the wet exhaust set up exactly as it would be in the boat including tips, mufflers, y pipes, 90's, whatever. It's much more important for me to have the best tune up vs the best number. I also use real time correction via a weather station mounted right in front of the engine and run all the engine accessories. I guarantee those manifolds will support 500 NA hp. I'd go with two LSX 454's for a base. It's only 90lbs difference between the alu block. Or ask Ilmor to bump a couple up to 600 for you..

Uncle Dave

How many guys can pull off an nmea2K complaint version of this?

UD