Electronic Throttle Body... change? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JNJchev77 · 03-15-2012, 11:32 PM

Need some help guys....

Have a 5.3 out of an 03 Tahoe. Getting ready to start the rebuild to put in my 77. My question is, it has an electronic throttle body. I would like to change to cable throttle, is this a simple change??

Don't have the pedal assembly for it, what are my options?

Thanks,
Justin

softballnrd27 · 03-16-2012, 09:20 AM

Yes it is a simple swap as long as you have the right computer and harness. You can use your stock intake you will just have to find a way to put some inserts or studs in the empty holes. You will need a Red/Blue connector computer and matching harness.

JNJchev77 · 03-16-2012, 11:49 AM

Quote:

Originally Posted by softballnrd27

Yes it is a simple swap as long as you have the right computer and harness. You can use your stock intake you will just have to find a way to put some inserts or studs in the empty holes. You will need a Red/Blue connector computer and matching harness.

Ok, I don't have the harness or computer... I'll start looking around yards and CL/Ebay see what I can find, thanks for the help!

softballnrd27 · 03-16-2012, 11:57 AM

Also look on ls1tech.com I found a harness and computer for $150 shipped.

softballnrd27 · 03-16-2012, 11:58 AM

Also read here bc I explained how I added studs on my intake for the throttle cable bracket.
http://67-72chevytrucks.com/vboard/s...d.php?t=514236

JNJchev77 · 03-16-2012, 12:01 PM

I've been pluggin around there lately, just trying to get as many opinions as I can

When I'm looking for a DBC throttle body, is there a kit I need for the cable and brackets, or can I use a factory style from the older pickups?

gringoloco · 03-16-2012, 01:03 PM

99-02 truck throttle body will work. You can also grab the inserts from the yard- just break em off with channel locks. Heat them and push into your intake...
Posted via Mobile Device

softballnrd27 · 03-16-2012, 01:03 PM

I bought a lokar throttle cable and a stock bracket and any 3 bolt throttle body will work.

JNJchev77 · 03-16-2012, 01:54 PM

Great, thanks guys!!!

Ranger6202 · 03-16-2012, 10:57 PM

You'll want the wiring harness with red/green connectors, i know for sure those are for the cable setups. Couldn't tell ya if there were ever any of the blue/green connector combos setup for cable. I believe LT1swap has a list of ECMs determined whether they are flexible for either setup. If not, i have a list made up that i can either post on here or PM to you.

softballnrd27 · 03-17-2012, 10:31 PM

It should be red/blue
Posted via Mobile Device

JNJchev77 · 03-18-2012, 12:32 AM

Thanks guys!!!

Now, what if I decide to go to an LS1 intake? Same cable throttle body? Fuel rails...?

softballnrd27 · 03-19-2012, 12:21 PM

TB should be fine, get the rails and crossover tube from the ls1 to simplify things.

JNJchev77 · 03-19-2012, 12:31 PM

Thanks man!

And one last question for now ;P.... My 5.3 has cathedral ports, what do I need to look for when searching for a used LS1 Intake? I see a bunch around EBAY/CL but not sure how they match up, the port on the intakes I've seen are square...?

03-15-2012, 11:32 PM	#1
JNJchev77 Registered Cruiser Join Date: Mar 2010 Location: Mesa, AZ Posts: 918	Electronic Throttle Body... change? Need some help guys.... Have a 5.3 out of an 03 Tahoe. Getting ready to start the rebuild to put in my 77. My question is, it has an electronic throttle body. I would like to change to cable throttle, is this a simple change?? Don't have the pedal assembly for it, what are my options? Thanks, Justin __________________ 77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo

03-16-2012, 09:20 AM	#2
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Electronic Throttle Body... change? Yes it is a simple swap as long as you have the right computer and harness. You can use your stock intake you will just have to find a way to put some inserts or studs in the empty holes. You will need a Red/Blue connector computer and matching harness. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-16-2012, 11:57 AM	#4
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Electronic Throttle Body... change? Also look on ls1tech.com I found a harness and computer for $150 shipped. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-16-2012, 11:58 AM	#5
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Electronic Throttle Body... change? Also read here bc I explained how I added studs on my intake for the throttle cable bracket. http://67-72chevytrucks.com/vboard/s...d.php?t=514236 __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-16-2012, 12:01 PM	#6
JNJchev77 Registered Cruiser Join Date: Mar 2010 Location: Mesa, AZ Posts: 918	Re: Electronic Throttle Body... change? I've been pluggin around there lately, just trying to get as many opinions as I can When I'm looking for a DBC throttle body, is there a kit I need for the cable and brackets, or can I use a factory style from the older pickups? __________________ 77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo

03-16-2012, 01:03 PM	#7
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Electronic Throttle Body... change? 99-02 truck throttle body will work. You can also grab the inserts from the yard- just break em off with channel locks. Heat them and push into your intake... Posted via Mobile Device __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

03-16-2012, 01:54 PM	#9
JNJchev77 Registered Cruiser Join Date: Mar 2010 Location: Mesa, AZ Posts: 918	Re: Electronic Throttle Body... change? Great, thanks guys!!! __________________ 77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo

03-16-2012, 10:57 PM	#10
Ranger6202 Registered User Join Date: Dec 2011 Location: Lyman Wyoming Posts: 109	Re: Electronic Throttle Body... change? You'll want the wiring harness with red/green connectors, i know for sure those are for the cable setups. Couldn't tell ya if there were ever any of the blue/green connector combos setup for cable. I believe LT1swap has a list of ECMs determined whether they are flexible for either setup. If not, i have a list made up that i can either post on here or PM to you.

03-17-2012, 10:31 PM	#11
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Electronic Throttle Body... change? It should be red/blue Posted via Mobile Device __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-18-2012, 12:32 AM	#12
JNJchev77 Registered Cruiser Join Date: Mar 2010 Location: Mesa, AZ Posts: 918	Re: Electronic Throttle Body... change? Thanks guys!!! Now, what if I decide to go to an LS1 intake? Same cable throttle body? Fuel rails...? __________________ 77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo

03-19-2012, 12:21 PM	#13
softballnrd27 Always a work in progress Join Date: Jun 2007 Location: Harker Heights, TX Posts: 1,599	Re: Electronic Throttle Body... change? TB should be fine, get the rails and crossover tube from the ls1 to simplify things. __________________ USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168

03-19-2012, 12:31 PM	#14
JNJchev77 Registered Cruiser Join Date: Mar 2010 Location: Mesa, AZ Posts: 918	Re: Electronic Throttle Body... change? Thanks man! And one last question for now ;P.... My 5.3 has cathedral ports, what do I need to look for when searching for a used LS1 Intake? I see a bunch around EBAY/CL but not sure how they match up, the port on the intakes I've seen are square...? __________________ 77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.