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: 5,920	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



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