1968 C10 5.3 swap, the easy way. - Page 5 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dova · 04-22-2013, 02:27 PM

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

wow, quick and easy...

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

1old67 · 06-13-2013, 10:57 PM

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

I may have missed it, but what exhaust manifolds did you go with?
Posted via Mobile Device

vannatta20 · 06-19-2013, 11:48 AM

ls3 manifolds

vannatta20 · 06-20-2013, 11:19 PM

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

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

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!
Posted via Mobile Device

ivorton74 · 07-17-2013, 01:05 AM

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

Any pics of the new seats? Are they on a seperate frame? Thanks.

vannatta20 · 07-21-2013, 10:20 PM

Quote:

Originally Posted by eagleuh1

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

Here is a video I made today of everything that was done. Hope this helps anyone thats interested in doing this.

68 c10 LS swap - YouTube

eagleuh1 · 08-02-2013, 06:12 AM

Wow, very nice job.

19GMC66 · 08-04-2013, 03:17 PM

Nice job on the truck, looks awesome! Very inspirational
Posted via Mobile Device

solidaxel · 11-26-2013, 10:38 PM

Quote:

Originally Posted by vannatta20

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

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

Ronald29609 · 08-15-2013, 01:59 PM

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

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

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

68 c10 donut after dyno session - YouTube

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

Quote:

Originally Posted by vannatta20

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

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

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

I just put in a 6.0 lq4 with 799 heads with yellow springs.

68GMCCustom · 11-05-2013, 10:22 PM

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!

04-22-2013, 02:27 PM	#1
Dova Registered User Join Date: Jul 2007 Location: Silverdale, WA Posts: 263	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.

06-05-2013, 11:18 PM	#2
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: 1968 C10 5.3 swap, the easy way. wow, quick and easy... I need to find a clean New Mexico truck like that... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

06-13-2013, 10:57 PM	#3
1old67 Registered User Join Date: May 2012 Location: Houston TX Posts: 113	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 Last edited by 1old67; 06-14-2013 at 03:28 PM. Reason: Didn't read

06-14-2013, 08:49 AM	#4
jimmyjammoto Registered User Join Date: Mar 2013 Location: Hubbard TX Posts: 73	Re: 1968 C10 5.3 swap, the easy way. I may have missed it, but what exhaust manifolds did you go with? Posted via Mobile Device

06-19-2013, 11:48 AM	#5
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	Re: 1968 C10 5.3 swap, the easy way. ls3 manifolds

06-20-2013, 11:19 PM	#6
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	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

06-25-2013, 07:53 AM	#7
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	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

06-25-2013, 03:52 PM	#8
sunk99 Registered User Join Date: Sep 2011 Location: Knoxville TN Posts: 399	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! Posted via Mobile Device __________________ ------------ Scott

07-17-2013, 01:05 AM	#9
ivorton74 Registered User Join Date: Nov 2011 Location: South Dakota Posts: 916	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.

07-21-2013, 05:05 PM	#10
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Re: 1968 C10 5.3 swap, the easy way. Any pics of the new seats? Are they on a seperate frame? Thanks.

08-02-2013, 06:12 AM	#13
eagleuh1 Registered User Join Date: Jul 2009 Location: Russellville, Arkansas Posts: 1,699	Re: 1968 C10 5.3 swap, the easy way. Wow, very nice job.

08-04-2013, 03:17 PM	#14
19GMC66 Registered User Join Date: Nov 2012 Location: AZ Posts: 146	Re: 1968 C10 5.3 swap, the easy way. Nice job on the truck, looks awesome! Very inspirational Posted via Mobile Device

04-15-2014, 11:31 PM	#16
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	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

08-15-2013, 01:59 PM	#17
Ronald29609 Registered User Join Date: Aug 2013 Location: Lake George, NY Posts: 30	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.

08-15-2013, 02:48 PM	#18
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	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? __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42



Register or Log In To remove these advertisements.

09-02-2013, 05:34 PM	#19
kd360 Registered User Join Date: Jan 2012 Location: Mattituck New York Posts: 6	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

11-05-2013, 03:27 PM	#22
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	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.

11-05-2013, 07:45 PM	#23
68Stepbed Registered User Join Date: Mar 2005 Location: 10-Uh-See Posts: 5,609	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? __________________ Matt 68 C10 stepside, LS1/700R4, TCI Engineering suspension system

11-05-2013, 09:16 PM	#24
vannatta20 Registered User Join Date: Oct 2011 Location: Las Vegas, NV Posts: 290	Re: 1968 C10 5.3 swap, the easy way. I just put in a 6.0 lq4 with 799 heads with yellow springs.

11-05-2013, 10:22 PM	#25
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	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! __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

Register or Log In To remove these advertisements.