1968 F100 6.0 ls build

[OBeer-WAN-Kenobi]

Originally Posted by hackster

Ask and you shall receive.

I ran a 1/0 guage wire directly from the negative battery terminal directly to the a/c bracket bosses on the side of the block. Cleaned off everything very well of paint and stuff.

I knew that something was not quite right with the firing order so I printed out the wiring diagram for the coil packs as that was the one thing I did not know if I had right, I suspected the 2-8 bank for some reason.

Sure enough I had the odd bank in the right order but had the even bank wired backwards so signal 8 went to cylinder 2 and 2 went to 8. All it took was swapping the plugs on the coils.

I was sure it was not going to fire so I just hopped in, turned the key and the damn thing fired right up. I mean right up like it was meant to be.

Video makes it sound much quieter than it is. In person its pretty damn loud with the open exhaust. Turbo makes some nice noises too.

I pulled the fuel level sender to find a leak in the return fitting so I am dealing with that.

Need to drain the tranny and reseal the pan too, it leaks like crazy, just at the pan gasket though.

Damn happy though.

Sean

http://youtu.be/woiwYhJfiaw

Nice!

I thought the same thing as you when I went to try to fire up my '69 LS1 swap a few weeks ago. "Bah, it isn't going to start the first time anyway" and I had the same results. Fired right up.

I was a little apprehensive about swapping in a modern engine/computer. Especially one that i did all the wiring myself. However; after doing it, I don't think I'll put a carburetor on anything ever again. Now that I've done it once, I can't wait to swap an LS engine into something else!

Of course, it helped that I had sent the PCM off to someone that knew what they were doing to program it before hand.

[aggie91]

Awsome! Even with all the small issues, I bet you are super happy!

[hackster]

Originally Posted by OBeer-WAN-Kenobi

Nice!

I thought the same thing as you when I went to try to fire up my '69 LS1 swap a few weeks ago. "Bah, it isn't going to start the first time anyway" and I had the same results. Fired right up.

I was a little apprehensive about swapping in a modern engine/computer. Especially one that i did all the wiring myself. However; after doing it, I don't think I'll put a carburetor on anything ever again. Now that I've done it once, I can't wait to swap an LS engine into something else!

Of course, it helped that I had sent the PCM off to someone that knew what they were doing to program it before hand.

I will never work on a motor with a carb again. After doing a few ls swaps with factory GM stuff and building a volvo on Megasquirt I am totally sold on late model motors in early sheetmetal. It is what I love to do. Old looks with new operation and performance.

Originally Posted by aggie91

Awsome! Even with all the small issues, I bet you are super happy!

Totally. I put in the repaired sender last night and that was it. I watched a little bit of TV and hung out with the wife last night. I think she was pretty happy about my choice to not be in the garage last night.

I ordered up all of my exhaust yesterday and should have everything to build that this weekend.

Hopefully get the tranny pan all fixed up and sealed up and back on the truck.

Chris at Circle D wants me to double check the flexplate to converter gap and make sure its between .125 and .150, I think its more than that and might need some spacers in there.

So it will probably be at least another week until I get to see if it will move under its own power.

Thanks for the compliments and I am super excited that it all works, still pretty stoked just that everything I did worked

Sean

[hackster]

Had a crazy busy week at work but I did manage to order in a few things this week. Mostly exhaust parts, but did order in this cool little catch can for the radiator.

Measured about ten different ones but ended up with this little guy from Summit Racing.

Its a great fit and was a pretty straighforward install. This area is getting a little busier than I had hoped for but trying my best to keep everything very simple and clean but still very functional.





Also in some crazy feat of a miracle all of my exhaust parts showed up. I have 8' of 4" 16 guage tubing, 2 mandrel 180's 2 mandrel 90's, 2 mandrel 45's 1 4" flex coupler, 1 Dynatech race muffler, 3 hangers and a few other bits.

Trying to decide if I want to try and run 4" Exhaust up and over the axle and clear a rear mounted gas tank lowered truck and not a lot of clearance or just do a side exit angle cut in front of the passenger rear tire...

Suggestions?

Sean

[southsidehacker]

Please put the 4" over the axle. This truck deserves it!

[hackster]

I am kind of in agreement with that but physically do not think it will fit.

4" is huge exhaust to run on a lowered truck. I will have it up on a rack around 9 this morning. Should give me a much better idea if I will be able to make it happen or not.

Sean

[DBasher]

Could you split into smaller duels before the axle to get up and over?

Love the truck, the details and how quick it's coming together!


Dan

[joemac]

These trucks are my favorite vintage Ford truck. Would have been cool with Ford power but this thing is going to be insane regardless. Very excited to see it finished.

I'd run the exhaust out in front of the tire. Through the bed exit is neat too. Or just dump it under the bed.

[GregWeld]

Just read from page one... great project! Really like the way you kept it simple and just did a nice job.

[hackster]

Originally Posted by DBasher

Could you split into smaller duels before the axle to get up and over?

Love the truck, the details and how quick it's coming together!


Dan

Thanks Dan for the compliment and suggestion. For some reason and I think it might be my age or the era I grew up in but I am not a fan of dual exhaust. It just seems too 80's for some reason.

Originally Posted by joemac

These trucks are my favorite vintage Ford truck. Would have been cool with Ford power but this thing is going to be insane regardless. Very excited to see it finished.

I'd run the exhaust out in front of the tire. Through the bed exit is neat too. Or just dump it under the bed.

I looked at a couple of those but they just did not pencil out for one reason or another.

Originally Posted by GregWeld

Just read from page one... great project! Really like the way you kept it simple and just did a nice job.

Thank you sir. I am still just a young guy building cars when it comes to others on here. I tend to like the simple cars with cool drivetrains.

I went up to my neighbor Brians place and got the truck up on the lift for the day to work on the exhaust.

It was a damn good thing too, it would have taken me 4x as long to get this done on the garage floor. Actually, I might not have been able to do it on my floor at all with the clearance needed to pull the parts and weld them out.

Turns out that it would not have worked well at all to do the side exit in front of the tire. It would have made it necessary to remove the exhaust to get to the battery and it kind of looked terrible.

I ended up running 4" from the downpipe, over the first crossmember, then to a flex pipe and hanger then a 4" Vband to split the exhaust in two pieces for removal purposes.

Then into the muffler, over the rear axle and out the passenger side between the bumper and rear tire.

It was a ridiculously tight fit getting past the tranny, over the x member and below the body then over the axle and between the spring and fuel tank.

It turned out pretty good. Under the truck has awesome ground clearance, under the tank the very rear is pretty low but still a good 5 or 6" off the ground. I am not worried at all.

Here are a few crappy pics....I am going to paint the rear most section with high temp satin black paint to make it not stand out as much.













Also pulled the tranny pan cleaned everything up and checked it for flatness and it looked good. Put the pan back on with a new non neoprene gasket.

I need to torque it in the morning and put the fluid back in there.

Tomorrow should be rearend fun...

Sean