the mechanical pump was taken apart and modified for more volume and pressure, but i have an electric for back up

We purchased a pair of Chief 600's, about 3 years ago. 502 ci with blowers. They came with a one year warranty. We installed them in a 38 Scarab. The man runs his boat every weekend, and has not had one problem.

Blown 572's = Big and Reliable
 

572's with 1071's = 980 HP @ 5500 and 8 intercooled PSI. No Issues since installed last year.

What about the Allstar 708. I heard it was back on the market. That is 708 ci 850hp stock. Ask Phaff about it he built one or two.
pat W

Apache 77: who's motors are those and what size are they to get that kind of HP out of them? That and those are very beautiful motors I'm Jealous:D :D

Later Sat69

Allstar 708

I would call Randy Garcigia at Cobra Power. They are in N Miami and also on this board. I have seen his shop and his product, and they are first class. Randy is a stand up guy and backs his big motors with a WARRENTY !!!

Bob Scanlon

I was just in Julie Sullivans (Keith Eickert Power Poducts) 47 outerlimits with Triple 1100's and those things purred all day long in the Jacksonville Firefighters River Rally.I dont think while we were running they saw under 5000rpm. Didnt miss a beat. While talking at lunch see expressed the huge success of a mainstream 675 i believe that they have put out in the market that comes with a great warranty and have had nothing but great results. If not mistaking It's EFI too. Save on gas HAHA. Good Luck. Craig

We can offer you an engine that is specifically built for your application using only the best parts available. We can probably re use some of your existing parts ( upon inspection ). Our engines are built on a limited basis, and completely custom to perfectly fit your rig so it outperforms and outlasts all in its class. We are also very reasonably priced. Feel free to call me with any questions, as we are always happy to help OSO members.

Stephen

I am surprised nobody has said anything about inovation marine in sarasota FL.... I have been to their shop a few times and they build some great motors as well.... GM teamed up with them to marinize all of the new vortec motors comming from them, or they can build you anything that you need. There is a full machine shop in house that can mill/hone/deck a block or heads with, and they have a dyno right there to give you specs on the motor. Friend of mine has a pair of thier 600 EFI motors in a 33' scarab and we will run 90-92 all day long. The military also uses them for all of thier motors, and if the military cant break em I am pretty sure you cant either. :D