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-   -   1968 C10 5.3 swap, the easy way. (https://67-72chevytrucks.com/vboard/showthread.php?t=517347)

khan1369 04-10-2013 06:24 AM

Re: 1968 C10 5.3 swap, the easy way.
 
I am jealous... I am trying to talk the wife into letting me buy a 5.3L so I can do the swap. the MPG savings will pay for it in about a year anyways. Not the easiest thing to do let me tell ya'.

vannatta20 04-12-2013 02:04 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Reunited with the truck today. Will be posting daily updates
Posted via Mobile Device

vannatta20 04-19-2013 04:48 PM

Re: 1968 C10 5.3 swap, the easy way.
 
4 Attachment(s)
Its done!


Attachment 1095075

Attachment 1095076

Attachment 1095077

Attachment 1095078

chuckmc8 04-19-2013 05:11 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Very nice. Congratulations and thank you for documenting your swap. I refereed to your thread several times while I did mine.

ls1nova71 04-22-2013 10:18 AM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by vannatta20 (Post 6022207)
Its done!

Looks very nice! But you are going to put a tailgate on it, right?

Dova 04-22-2013 02:27 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Also you should look into side markers off a chevy cargo van. They go very well with the bodylines.

msgross 06-05-2013 11:18 PM

Re: 1968 C10 5.3 swap, the easy way.
 
wow, quick and easy...


I need to find a clean New Mexico truck like that...

1old67 06-13-2013 10:57 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Really really nice truck

Went threw it all again I understand now. I'm more of a picture guy lol. Thx love your truck

jimmyjammoto 06-14-2013 08:49 AM

Re: 1968 C10 5.3 swap, the easy way.
 
I may have missed it, but what exhaust manifolds did you go with?
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vannatta20 06-19-2013 11:48 AM

Re: 1968 C10 5.3 swap, the easy way.
 
ls3 manifolds

vannatta20 06-20-2013 11:19 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Also tbss manifolds fit great. Little update, got the cruise control working and installed 2006 dodge ram seats
Posted via Mobile Device

eagleuh1 06-25-2013 07:53 AM

Re: 1968 C10 5.3 swap, the easy way.
 
Piccccs. Please. Truck looks great. Did you put the seats on a frame or straight to the floor. Thanks. Jim

sunk99 06-25-2013 03:52 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Been looking everywhere for those factory A/C compressor fittings and no luck so far, look to be my best option so far. Nice truck!
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BigRed76 07-07-2013 06:02 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by slamed67 (Post 5991161)
i did it! i got my old 350 out and my 5.3 in.. and i used the dirty dingo sliders like you said and it was so easy! did it in one afternoon with my wife! thanks for posting and showing us whats up on this swap. i deleted my emissions along with the vats.. sent to brendan @ http://www.lt1swap.com/ followed his instructions on the harness mods. building the fuse block featured on his site. also took the advise on the boyd welding tank, went with the efi model. and picked up some doug thorley swap headers! still got some work to do on it.. should be done soon, weather permitting. heres a pic and thanks for the inspiration!

How do the end of your headers sit in relation to the frame? And what motor mounts did you use?
Posted via Mobile Device

ivorton74 07-17-2013 01:05 AM

Re: 1968 C10 5.3 swap, the easy way.
 
CONGRATS!! Truck looks great...that's exactly what I want for my truck...nice 5.3 swap and a fresh new coat of paint to make a nice cruiser...I finally scored me a 5.3 complete for $350...just need a 4l60 and other stuff now.

eagleuh1 07-21-2013 05:05 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Any pics of the new seats? Are they on a seperate frame? Thanks.

vannatta20 07-21-2013 10:20 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by eagleuh1 (Post 6183463)
Any pics of the new seats? Are they on a seperate frame? Thanks.

I cut the front legs off and welded brackets on i found at a hardware store. Ill post some pics tomorrow. I need to get them recovered and looking at options now. I have cruise switch installed on the orgianal turn signal stalk. Ill post some pics and a how too on that.

vannatta20 07-22-2013 09:30 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Here is a video I made today of everything that was done. Hope this helps anyone thats interested in doing this.


eagleuh1 08-02-2013 06:12 AM

Re: 1968 C10 5.3 swap, the easy way.
 
Wow, very nice job.

19GMC66 08-04-2013 03:17 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Nice job on the truck, looks awesome! Very inspirational
Posted via Mobile Device

mooseknuckles 08-04-2013 07:33 PM

Re: 1968 C10 5.3 swap, the easy way.
 
very nice.

Ronald29609 08-15-2013 01:59 PM

Re: 1968 C10 5.3 swap, the easy way.
 
This retired guy says thanks for this post. I am going to do the same for my 67 Short bed. Since I had not a clue where to begin you can imaging how helpful this is.

solidaxel 08-15-2013 02:48 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Thanks for sharing all your information with us, nice work!

Tell me about, the I think you said 4 wires from the relays to the "Truck" where and what are these wires connected too?

What are you using for a speedometer?

kd360 09-02-2013 05:34 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Awesome build. I can't wait to start mine after seeing this. I am swapping mine out of an 02 silverado so I am hoping to use most of the factory parts.
Posted via Mobile Device

vannatta20 11-05-2013 12:03 AM

Re: 1968 C10 5.3 swap, the easy way.
 

LQ4 dyno at 311 hp and 380 tq. The truck intake killed power and wouldnt make anything passed 5100 rpm.
Update.. The truck intakes are fine. The camshaft holds the power way back. Installed a new cam and I have so much more power and so far the gas mileage is the same. Actually got a few mpgs better.

68GMCCustom 11-05-2013 12:48 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by vannatta20 (Post 6348617)
LQ4 dyno at 311 hp and 380 tq. The truck intake killed power and wouldnt make anything passed 5100 rpm

not sure that was your problem as lots of guys are making power past that point with the truck intake...could have been your cam.

vannatta20 11-05-2013 03:27 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Yea I agree. Im trying to find a stock lq4 dyno graph to compare it. Its either the cam and/ or valve springs.

68Stepbed 11-05-2013 07:45 PM

Re: 1968 C10 5.3 swap, the easy way.
 
It's the cam and valvesprings. I didn't read the whole thread. Is the valvetrain all stock stuff?

vannatta20 11-05-2013 09:16 PM

Re: 1968 C10 5.3 swap, the easy way.
 
I just put in a 6.0 lq4 with 799 heads with yellow springs.

68GMCCustom 11-05-2013 10:22 PM

Re: 1968 C10 5.3 swap, the easy way.
 
ahhh.......cam is stock then. That would be a limiting factor. That said...your dyno numbers are good. Wouldn't think you'd be getting valve float with those springs in the low 5000rpm range but I'm not familiar with their specs.

put a .550 to .600 lift cam in it with duration in 210-220/220-230@.050 range...along with a nice set of .650 lift dual springs and some c-moly p-rods to keep it together and watch it wake up!

68Stepbed 11-06-2013 09:27 AM

Re: 1968 C10 5.3 swap, the easy way.
 
Yep, a TSP sleeper 220 cam with dual springs and hardenend pushrods will wake that baby up to about 380 hp.

JP238 11-26-2013 05:27 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Very nice truck!

Where did you get the LED gear indicator?

vannatta20 11-26-2013 09:17 PM

Re: 1968 C10 5.3 swap, the easy way.
 
I bought a LED at radio shack and rigged a mount for it.

JP238 11-26-2013 09:27 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Just soldered to the factory wire?

vannatta20 11-26-2013 09:27 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Gas mileage update! The 6.0 is getting MUCH worse gas mileage than the 5.3. I didnt think it would be a big difference but it sure is. getting like 14mpg :(. Its been tuned by two of the top tuners in the US as well. I baby it as well. I wish i never put it in. My 5.3 got at least 18 in town. Also I thought i would notice the torque increase around driving around town but its not that huge of a increase.

Update. The factory 6.0 needs a bigger cam in it. I did this and I enjoy the 6.0 now.

vannatta20 11-26-2013 09:53 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by JP238 (Post 6390287)
Just soldered to the factory wire?

I just ran it to ignition hot wires behind the dash.

JP238 11-26-2013 09:56 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by vannatta20 (Post 6390349)
I just ran it to ignition hot wires behind the dash.

Gives it a nice little touch. I like it.

solidaxel 11-26-2013 10:38 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Quote:

Originally Posted by vannatta20 (Post 6183970)
I cut the front legs off and welded brackets on i found at a hardware store. Ill post some pics tomorrow. I need to get them recovered and looking at options now. I have cruise switch installed on the orgianal turn signal stalk. Ill post some pics and a how too on that.

I am at that stage now so I am waiting for pic.

vannatta20 04-15-2014 11:31 PM

Re: 1968 C10 5.3 swap, the easy way.
 
Did my first autocross run this weekend! Felt strange pushing the ol truck around on the course. Truck held together!

http://youtu.be/LgogK_FevgM

littlevictories 04-15-2014 11:47 PM

Re: 1968 C10 5.3 swap, the easy way.
 
thats rad


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