Country705

Hello all,
I just joined the site today and wanted to let everyone know my project.
My 1994 ford F150 extended cab 4x4 is recieving an ls1 heart transplant. right now i am in the beggining stages planning and buying everything that is needed to put the engine and tranny into my truck. the truck has a 302 that doesnt get good gas mileage and is a pig. This truck has a lot of sentimental Value to my wife and i because my father in law brought my wife to our wedding in it and because it was his before i bought it. couple question i have is whats the best aftermarket harness to get to fix my truck and what is the mpg i can expect out of a 6.0 liter lq4 engine.
thanks,
Country

ramdaspadhye

iTrader: (3)

Mileage wise, probably around 15-20 with longtubes and an economy tune.

Country705

thats gravy for me considering i currently get 11mpg hwy 10 interstate.

Bo185

And you keep your foot out of it!!!

Just get a standalone harness. When you remove the 302 label the senders for the gauges and you can reuse them on the LQ4 for the stock gauges.

bczee

iTrader: (12)

You can check with John @ Speartech, Jesse @ Wait4mePerformance, CurrentPerformance and a few of the other sponsor / Vendor on this site.. they can all fix you up with a standalone harness.

I think with the right combination and a good tune you might be able to get close to 25mpg.. your weight, gears and tire would have lot to say about what you can expect.

Country705

Okay i hit a speedbump. does anyone know a site that would provide me with the engine mounts. I cant find a site that has ls1 engine mounts to put on my ford frame. i thought advance adaptors would have one but i couldn't find it. thanks for the info on the wiring harness. the truck is going to be my daily driver. its a 4x4 with 31.10.5R15 Tires and a 3.55 limited slip rear end.

bczee

iTrader: (12)

Hmmm.. not a common swap.. I think for the most part, your on your own to build what you need. Try Speedway Motors.. they have a lot of DIY stuff for Rods and older trucks. I wouldn't know even know what oil pan would work due to the cross member or where the frame stands would end up. Just Fab up your own...

Country705

Do you guys know what the mustang guys are using. should be about the same engine mount. i dont think the ls1 is bigger than the 351 winsor.

6.0Nova?

You can use 5.0 Mustang headers, just weld on LS1 flanges. Ford truck motor mounts are pretty simple, and I know I've seen a 95 F150 with a 4.6 in it, so an LS1 shouldn't be a problem...they bolt in pretty much the same way.

Country705

what do you guys think a conversion would cost. i can get a complete swap with a 6.0 and a 4l80e and all the stuff needed to swap right down to the gas pedal for $3250 and it has 75,000 miles on it. what do you guys think is that two much to pay for a 2003 swap.

Ls7colorado

iTrader: (3)

did anyone ever accomplish this?
Im trying to do the same thing but in a 2wd

Jason1702

I'm doing the same swap. Motor and tranny is all ready to go In. I'm stumped on what mounts too. I'm thinking Ima try mustang fox body mounts

topfuel57

Just started working on my 85 E350 shuttle bus conversion. The 720 pounds 460 and C6 tranny out already.