Thinking about switch to gas

[Evanla_33]

If I did switch my 7.3L to a gas motor in my 250, what engine would be the best and would i have to swap tranny to or is there a 7.5 or somethin that will bolt up to it?

[csdwarf11]

Whats wrong with your 7.3? I think bb 460 would be closest for sure.

[Evanla_33]

Just did the heads $2000, 2 injectors $600.00 water pump $200 , uvch and glow plugs with realy $250.00 and the thing still smokes and has a rough idle & that was just parts I did the work, Could have bought a new gas engine by now! love the 7.3 but just waiting my options before i do an over haul or something crazy! A diesel is kind of over kill for just driving to work, I spend more in fuel warming it up than driving it.

[Fordman247365]

You could have gotten a whole different engine for the $2k you dumped on heads, you got raped. Did you do a compression check on it before you dumped $$. You got severly raped for the glow plugs and relay also, the best money can buy can be had for $120 for the relay and plugs.

[csdwarf11]

Originally Posted by Evanla_33

Just did the heads $2000, 2 injectors $600.00 water pump $200 , uvch and glow plugs with realy $250.00 and the thing still smokes and has a rough idle & that was just parts I did the work, Could have bought a new gas engine by now! love the 7.3 but just waiting my options before i do an over haul or something crazy! A diesel is kind of over kill for just driving to work, I spend more in fuel warming it up than driving it.

wow man, thats terrible....(( im sorry did it hurt?


-There is a guy selling magnafluxed know good heads on my local craigslist for 300obo a set.

-you could have spent 1200 and had all 8 rebuilt and upgraded to stage 1's

-friend just got a waterpump for 80$ off rock auto with a decent warranty...

-you also got taken on glow plugs and all that jazz as said before...


-you should have checked compression, sensors, fuel pressure, HPOP ect before throwing everything at it like that....what made you think it needed head work? and how did you figure 2000$ was the price to pay?

-if your spending a considerable amount of money in fuel letting the truck idle, your probably just washing the thing down....just plug it in a few hours before work, 10c KwH...really not expensive.


a engine swap will be a lot of work, you will be dropping the value of your truck thousands of dollars and spending even more to do so.

I personally would pay more for what you seem to think is a broken pile of scrap 7.3 then I ever would with a 460 gas running flawless.

you wanted opinions

[csdwarf11]

If you plan on doing an engine swap im going to assume you dont need the truck in some big rush type of manner. So hear me out.


Before you do something I think is stupid. Let me try to help you.

Explain exactly what the issue is, take videos, pictures ect.

Get pressues for me, HPOP and fuel pressue, compression.

Rough idle all the time? or just when cold? when is the smoke? only when its cold?

smoke constant? look into the turbo, Oil in DP? ect. theres a lot to look into.

[Evanla_33]

Originally Posted by csdwarf11

If you plan on doing an engine swap im going to assume you dont need the truck in some big rush type of manner. So hear me out.


Before you do something I think is stupid. Let me try to help you.

Explain exactly what the issue is, take videos, pictures ect.

Get pressues for me, HPOP and fuel pressue, compression.

Rough idle all the time? or just when cold? when is the smoke? only when its cold?

smoke constant? look into the turbo, Oil in DP? ect. theres a lot to look into.

Compression is around 400 on all clyinders,Was 240 on # 7, 400 now, Fuel pressure is 75psi with the california spring. IPR is around 580-600 at idle, arould 2000psi WOT. and there is oil in my DP. Puffs "o"'s when cold. I had the machine shop redo the heads, all new valve,seal, guides totally redone. Could have shaved with one of the valves was so thin. Any help would be great, love the 7.3 and the power just getting frustrated. Smokes mostley on start up but still a little blue when warm. Is it possible to still have a bad injector even though they pass a buzz test?

[catlinB]

Originally Posted by Evanla_33

Compression is around 400 on all clyinders,Was 240 on # 7, 400 now, Fuel pressure is 75psi with the california spring. IPR is around 580-600 at idle, arould 2000psi WOT. and there is oil in my DP. Puffs "o"'s when cold. I had the machine shop redo the heads, all new valve,seal, guides totally redone. Could have shaved with one of the valves was so thin. Any help would be great, love the 7.3 and the power just getting frustrated. Smokes mostley on start up but still a little blue when warm. Is it possible to still have a bad injector even though they pass a buzz test?

what about your valve cover gaskets ? and pigtails/wiring? all that look good no frays burnt black ?

[Evanla_33]

Originally Posted by catlinB

what about your valve cover gaskets ? and pigtails/wiring? all that look good no frays burnt black ?

All ready change and new. Is there a way to test the harness going to the UVCH?

[whitepowerstroke444]

id be willing to bet its you injector o-rings. oil drips into the fuel part of the injector and its injected into the cylinder with the fuel. this is causing the smoke you see and it could be bad enough to go out your exhaust valves and out your turbo