1968 F100 6.0 ls build

[OBeer-WAN-Kenobi]

Sweet! Getting close! Awaiting the start-up vid!

[hackster]

Originally Posted by OBeer-WAN-Kenobi

Sweet! Getting close! Awaiting the start-up vid!

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

[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!

[onelapduster]

Sean,

Congrats on the successful fire! Brings back good memories when my buddy and I fire the 5.3 in my Firebird. I bet you cannot wait to drive it!

[Streetking]

Very kool build..

[DBasher]

What's the word Sean? Deadlines comin up quick!