What did you do to your G-Body today? [2011-2018]

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kalidromos13

Master Mechanic
Oct 12, 2016
363
435
63
Palmdale, CA
Took the MC of for a cruise. Rides nice and stiff. Still can't get over how quickly it stops!! Took some pictures finally.
I'll add that I had to use a 5mm spacer in the front to clear the c5 calipers. They barely fit haha
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pontiacgp

blank
Mar 31, 2006
29,270
20,391
113
Kitchener, Ontario
I had to take the carb apart that I changed the base plate yesterday. Being cheap and lazy I reused the gasket and it caused a small vacuum leak. Plus, thanks to my a/f gauge, I was able to see the carb was acting strange at part throttle. I also wanted to change out the jets so I took the horn off and noticed the APT was siting real high, in fact it was out of it's threads so I am surprised how well it seem to run. I screwed the APT in and turned it out 3.5 turns and I'll see how that works. The jets were 73 with 43 rods so I changed the jets to 71. I want i to run a bit leaner. I had the 71 jets in the carb I built the other day so I took that one apart to remove the 71 jets and put the 73 jets in and changed the 43 rods to 49 rods and put that carb back together. Then I removed the base plate on the other carb that was leaking and changed that gasket so both carbs are ready to go.....now I'm enjoying a beer...tomorrow I'll remove my back up carb and try out these two....:)
 
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Slowpoke

G-Body Guru
Dec 23, 2016
584
1,219
93
After 2 years of off and on searching, I finally found that motherfuggin throttle cable/kickdown bracket!!! Website called Partingout.com. Off a '78 LeSabre if I recall, with a 350 BUICK, 4 barrel, and TH350. Alas, it's still not without it's problems. It bolts on with two bolts as opposed to the single bolt style both of my intakes and the TA intake utilize. But, it's nothing I can't handle. There's plenty of space on the mounting pad of the bracket. Drill a hole here, slot one there, and it'll mount up like factory. Clean it up, nice coat of satin black, and it'll be perfect.
View attachment 73011

Wonder if this one of the 4 barrel 4.1 would work for you
 

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Turbo Zach

Comic Book Super Hero
Sep 8, 2015
2,534
5,874
113
50130
I drove mine to work today. After work I washed it and took the curve senic way home. After a frustrating week it was nice to blow off some steam by talking some corners a little too fast! Wish I had a little more punch for the strait aways though.
 
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MrSony

Geezer
Nov 15, 2014
6,826
6,730
113
Des Moines, Iowa
Wonder if this one of the 4 barrel 4.1 would work for you
Tried every bracket under the sun. GM, Ford, Factory, aftermarket, etc. And I've tried that one. The one I have is LITERALLY the only bracket that works in my case. It's just one of those weird things. It HAD to be off of a 76-80 car with a 4 barrel, and a TH350. The 75 and back intakes use a different bracket, the two barrel bracket is different (too far back, so I'd have to get a new throttle and a different length kickdown cable), and only cars with a Th350 and cable activated kickdown used the cable. Most of these brackets I assume were either left attached to the cables in the car, bent and removed, thrown away, or scrapped with the cars. These are hard to find, and those that have them won't give em up. The Buick intake is so flat, that brackets like this:
cable.jpg

physically won't fit on the intake, hell, I have to use a spacer just to use a quadrajet, as the throttle arm hits the intake! It's a very odd and specific situation that I was in. Keyword was. And for those interested, this is the 68-74/5 style bracket:
20495628_1489199611172543_376312086_o.jpg

And yes, that carb is not the carb I'm gonna be using. The one I'm using is a later style qjet (that one was off a '70 455, hence no nub for the kickdown cable) that has the longer arm for the kickdown cable nub.
 
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Rus

Master Mechanic
Oct 7, 2016
283
858
93
Queensbury, NY
Installed my et streets on 15 x10 wheels and fired her up first time.
 
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Rus

Master Mechanic
Oct 7, 2016
283
858
93
Queensbury, NY
Tried every bracket under the sun. GM, Ford, Factory, aftermarket, etc. And I've tried that one. The one I have is LITERALLY the only bracket that works in my case. It's just one of those weird things. It HAD to be off of a 76-80 car with a 4 barrel, and a TH350. The 75 and back intakes use a different bracket, the two barrel bracket is different (too far back, so I'd have to get a new throttle and a different length kickdown cable), and only cars with a Th350 and cable activated kickdown used the cable. Most of these brackets I assume were either left attached to the cables in the car, bent and removed, thrown away, or scrapped with the cars. These are hard to find, and those that have them won't give em up. The Buick intake is so flat, that brackets like this: View attachment 73028
physically won't fit on the intake, hell, I have to use a spacer just to use a quadrajet, as the throttle arm hits the intake! It's a very odd and specific situation that I was in. Keyword was. And for those interested, this is the 68-74/5 style bracket: View attachment 73029
And yes, that carb is not the carb I'm gonna be using. The one I'm using is a later style qjet (that one was off a '70 455, hence no nub for the kickdown cable) that has the longer arm for the kickdown cable nub.
I actually went with after factory aluminum intake as my 400 or 455 intake had same problem as you described above.
 

MrSony

Geezer
Nov 15, 2014
6,826
6,730
113
Des Moines, Iowa
I actually went with after factory aluminum intake as my 400 or 455 intake had same problem as you described above.
It sucks, but you gotta do what you gotta do.
 

Injectedcutty

G body LS mafia
Nov 24, 2014
6,057
22,808
113
Louisville, KY
Stopped by the machine shop earlier and picked up the heads for my LS. They cleaned them, did a valve job, milled the deck about 7 thousandths to get them dead straight, and installed the BTR springs. The tech praised the BTR springs, he said he has yet to use shims to install to spec on all the sets he's setup!!!

Before:
LS_862_HEADS.jpg


After:
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