Carburetor question for 66 C-10 with 283 - Page 4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

markeb01 · 06-04-2010, 03:02 AM

If you're going to tap the threads with the manifold installed, make sure to hold a shop vac directly against the tap to minimize the risk of dropping debris in the manifold, and back the tap up frequently to easily clear the aluminum bits. Any chunks that circulate are likely to damage the water pump.

Also, if you're using a spreadbore manifold with a square bore carburetor there is suppose to be a sealing plate under the carb. That's the reason for the two gaskets, one below and one above the plate. Here's an example:

http://www.summitracing.com/parts/EDL-2732/?rtype=10

geezer#99 · 06-04-2010, 09:34 AM

Another tip for tapping threads. Put some grease on the tap and the chips will stick to the grease and not fall inside. Go slow. Clean and regrease often.

markeb01 · 06-04-2010, 01:29 PM

Excellent tip. That's never occurred to me. Once again I've learned something new. Thanks!

Slow Build · 06-04-2010, 03:51 PM

Well that went better than expected. Thanks for the tips.

I also ended up buying an adapter plate which I don't think is the best design but I want to get it on the road so I went with it.

raycow · 06-04-2010, 04:22 PM

That heater nipple looks fine. Most people would never know if you didn't tell them.

What is it you don't like about the carb adapter?

Ray

Slow Build · 06-04-2010, 08:57 PM

Quote:

Originally Posted by raycow

That heater nipple looks fine. Most people would never know if you didn't tell them.

What is it you don't like about the carb adapter?

Ray

That's the new nipple.

What I don't like about the adapter is the way the venturis splay out at angles. Just seems that it would mess with the flow of air/gas mixture. The primaries angle toward the front cylinders and the secondaries angle toward the rear cylinders. It's probably just my perseption of how it should flow, but I'm not an engineer so I'm most likely wrong.

hotstuff · 03-13-2013, 02:30 PM

I am an a old guy and have forgot more then the kids will ever learn , after the suggested repairs , I would do the manual choke conversion .

padresag · 03-13-2013, 02:54 PM

Quote:

Originally Posted by hotstuff

I am an a old guy and have forgot more then the kids will ever learn , after the suggested repairs , I would do the manual choke conversion .

are you older than Stodder?
ron

Rich 5150 69 · 03-13-2013, 03:29 PM

hotstuff · 03-14-2013, 10:21 AM

Nope , even I think thats old

06-04-2010, 03:02 AM	#1
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: Carburetor question for 66 C-10 with 283 If you're going to tap the threads with the manifold installed, make sure to hold a shop vac directly against the tap to minimize the risk of dropping debris in the manifold, and back the tap up frequently to easily clear the aluminum bits. Any chunks that circulate are likely to damage the water pump. Also, if you're using a spreadbore manifold with a square bore carburetor there is suppose to be a sealing plate under the carb. That's the reason for the two gaskets, one below and one above the plate. Here's an example: http://www.summitracing.com/parts/EDL-2732/?rtype=10 __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502

06-04-2010, 09:34 AM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,531	Re: Carburetor question for 66 C-10 with 283 Another tip for tapping threads. Put some grease on the tap and the chips will stick to the grease and not fall inside. Go slow. Clean and regrease often.

06-04-2010, 01:29 PM	#3
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: Carburetor question for 66 C-10 with 283 Excellent tip. That's never occurred to me. Once again I've learned something new. Thanks! __________________ My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502 Last edited by markeb01; 06-04-2010 at 01:30 PM.

06-04-2010, 03:51 PM	#4
Slow Build Registered User Join Date: Sep 2009 Location: California Delta Posts: 2,163	Re: Carburetor question for 66 C-10 with 283 Well that went better than expected. Thanks for the tips. I also ended up buying an adapter plate which I don't think is the best design but I want to get it on the road so I went with it. Attached Images __________________ Name: Rich Current Ride: 1964 C-10 Short Fleetside Daily Driver: 2005 GMC crew cab short fleetside /2001 Chevy Tahoe Past GM Trucks: 1959 GMC short stepside 1968 GMC short stepside-4x4 1973 Chevy short stepside 1989 Chevy short fleetside-reg cab 1993 Chevy short fleetside-Xcab 2002 Chevy short fleetside-Xcab Save the dinosaurs, use synthetic oil.

06-04-2010, 04:22 PM	#5
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Carburetor question for 66 C-10 with 283 That heater nipple looks fine. Most people would never know if you didn't tell them. What is it you don't like about the carb adapter? Ray

03-13-2013, 02:30 PM	#7
hotstuff Registered User Join Date: Mar 2013 Location: constantine,Mi. Posts: 93	Re: Carburetor question for 66 C-10 with 283 I am an a old guy and have forgot more then the kids will ever learn , after the suggested repairs , I would do the manual choke conversion .

03-13-2013, 03:29 PM	#9
Rich 5150 69 Registered User Join Date: Nov 2009 Location: Galt, Calif Posts: 2,437	Re: Carburetor question for 66 C-10 with 283 __________________ `64 C10 vortec 350/350/373 posi `69 RS/SS 350/350/308 `37 Ford 406/350/324 traclock `68 Dart 370/904/323 suregrip

03-14-2013, 10:21 AM	#10
hotstuff Registered User Join Date: Mar 2013 Location: constantine,Mi. Posts: 93	Re: Carburetor question for 66 C-10 with 283 Nope , even I think thats old



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