Ok my .02. These Cobra guys are making good power and real good torque down low, albeit most of these guys are boosted in one form or another. Most of these engines are lighter than other stuff out there are readily available, many factory alum blocks you just have to look around. There is a guy on another board who put a 6-71 on a 4v with mega squirt and makes pretty good power. He did it with a drill press and a skill saw. EFI is really the way to go with this as well. Turbo guys are really flogging these motors with something in the realm of 30psi of boost. Pretty cool in my book. I fixed an intake manifold for a guy who was making 35psi of boost. This thing was nuts to say the least, and what is cool is that my work stayed together....
T.J.

The triton v10 weighs in at 640lbs...thats less than the 460...but why waste your time on it...those things wont even keep a spark plug in...why not get a viper v10 making over 500ponies? And have already been ran in boats? The all aluminum 4.6 with a blower would be your best bet...kind of off topic but doesnt josh from jbp have a 400 plus inch ford sb in a jet making good numbers?

Damn I've mannaged to hijack my own thread oh well whatever works right.

  Well, let me explain clearly here...

  at power tour '10... Saturday it ran fine, just belt for altenator issues, it would jump off of its pulley. so I had that fixed by drove down to Yuma for new belt.. and spent rest day at the power tour no issues, radio works fine, igintion works fine.. then next morning (sunday) went back out.. works fine, no issues.. starts up sharp and quick.. runs smooth.. parked at the island with rest... 2 hours later took off gave two guest an feeler of my boat up the river, and back to the island.. no issues at all.. then parked for 6 hours.. yeah had radio on since tom was listening to his CD (im deaf).. all of sudden it just shut off itself.. so i turned the battery control switch off... and turned it on hour half later to have water pumped out.. it pumped fine... hour later getting ready to leave.. turned battery switch on to battery one.. does nothing, my key igition only turns the coil on and starter.. so I thought maybe battery one was dead. switched to battery two.. still same thing.. then used both on.. nothing still.. so i took my voltage tester (yes I do have it stay with boat) shows 12.200 volts on both battery, and fat hot wire from battery to the starter too.. then to the ford solenrid, shows 12 volts, then tested the power wire to the fuse panel behind motor block above the driveline cover.. shows no sign of power at all.. every fuse is fine.. checked for ground, loosen them and shake it around, tighten it again.. does nothing still.. My gagues will not show any use, even the RPM which normally goes to 1k when you click to start then back to 0 if its trying to start until engine has fired. it didnt even do that at all. lights didnt even work.. only hot wire goes to dash is from the fuse panel, and everything else is also powered to the dash from fuse panel. theres no batery goes striaght to dash or igition key. I did tested the igition with hot wire from battery, it works fine.



  So this guy who helped me hot wire the coil to keep it running said he thinks and postively thinks its the solenrid? I guess I will buy one for 60 bucks and see if it helps??