So I know this sounds weird, but I have to ask...Has anyone ever put a 2v motor in place of a 3v motor. The reason I ask this is I have 200,000 miles on my 2005 3v motor and things are starting to go wrong with it. I have a 2v 2004 Lightning longblock that came out of one of our race trucks that only has 20,000 miles on it. Im wonder how much of a b#$%& it would be to swap. Now I know there will be problems with the computer, but I also know that lightning guys put 4v heads on their motors all the time with just a change in the tune. Im wondering if a company like JDM that tunes our trucks can put a tune on my computer that is in the truck for a 2v motor. What do yall think...

 

Need not be a rocket scientist to perform this swap. But I can not help but wonder why, if you say it is out of one of your race trucks, that you would not be able to answer this question yourself. Don't you work on your race trucks?
As for the computer, you would need the computer out of the Lightning as it is not the same as the ones in the new body style. You would think you would be able to ask JDM this information.
He!!, if I would have had access to a Lightning engine and computer it would have been stuffed into my 2004 4x4 rather than just installing the Roush charger like I ended up doing.

 

I think you should pull the existing motor, put in forged internernals and get yourself a wet NOS kit with 15 psi boost on a supercharger kit. It'll set you back about $6K (check for intercooled deals for $3500 or less) if you're handy with a wrench, but you'll be putting out way more power than the Lightning 2V block and no swap is needed.

Try upwards of 600RWHP on spray.

 

I do understand what your saying. I would love to do that, but if I was to spend that kind of money I would put the JDM Motor that our lightnings have and have over 700 RWH no problem. And yes we take lightning motors out all the time and replace them with JDM motors, but I personally have never taken a motor apart this far (read my timing chain troubles). So im getting a little irritated with this thing and im trying not to. I originally thought I would need a lightning computer also. Im sure that is still the answer.

 

That would be downgrading....

You basicly have the same shortblock except forged pistons. They would be low compression(assuming you would be n/a) so that is less power, not to mention you heads will flow less...even less power.

 

You'll need more than that. If you currently have the 5.4 3V you'll need to replace the drive by wire and find a way to get the tranny to play with the Lightning block.

 

i would just have your stock motor built, by the time you buy everything you need to swap and then all the hassles of tuning and getting all the kinks out of the system you could have had a built 3v for probly the same cost

 

ill take the 3v heads if you're gonna trash them

 

well I can tell you that the motor that came out of the truck had a conservative 480 hp and 520 tq. That would be alot better then trying to build the motor that has 200,000 miles on it. Im prob just going to continue to fix the one I have with the timing chain problem, but in my opinion it is just the start of what is to come with that motor. Hopefully I dont get it all done and blow it up in a few months. The truck is always under a load since we own a construction company. Does anyone have a 3v motor for sale with good miles?