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#1 |
Oilfield Trash
Join Date: Sep 2003
Location: Raymore, Sk, Canada, Earth
Posts: 3,171
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Big Block/TH400 Guys, I Need A Pic Please
Tryin to get all the parts together to turn my 70 3/4 ton 350 back to an oringinal 402 big block, wondering if i could get a pic of the throttle linkage, and any kind of kickdown linkages and stuff. I was looking in the service manual and saw several different linkage combos and an electric kickdown switch, mine seems to have none of these. I want to turn this truck back to stock, since the only thing ever done to it was a 350 swap by the PO due to a blown motor. So any pics of factory style big block resto's would be great, thanks, Ryan
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14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr. |
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#2 |
Oilfield Trash
Join Date: Sep 2003
Location: Raymore, Sk, Canada, Earth
Posts: 3,171
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Re: Big Block/TH400 Guys, I Need A Pic Please
Must been some factory guys on here
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14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr. |
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#3 |
Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: Big Block/TH400 Guys, I Need A Pic Please
This is a pic off an ebay ad that might help. I don't think the bigblocks used any kickdown linkage but some kind of solenoid switch instead.
Last edited by Texasdeere; 11-16-2006 at 01:09 PM. |
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#4 |
Oilfield Trash
Join Date: Sep 2003
Location: Raymore, Sk, Canada, Earth
Posts: 3,171
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Re: Big Block/TH400 Guys, I Need A Pic Please
thanks man!
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14 Dodge 3500 Mega Cab 08 Dodge 3500 Mega Cab 87 Chev 3+3 4x4 80 GMC K10 High Sierra bone stock 70 Chevelle 350SS long term project 68 GMC 3ton Grain Truck/Garbage wagon 50 Pontiac 2 Door Coupe Project "I've got a shotgun rifle and a 4 wheel drive and a country boy can survive" Hank Jr. |
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#5 |
Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: Big Block/TH400 Guys, I Need A Pic Please
I went and looked at my 72 truck and it looked the same. That big solenoid looks like an a/c idle up.
Last edited by Texasdeere; 11-16-2006 at 03:43 PM. |
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#6 |
Registered User
Join Date: Apr 2006
Location: SoCal
Posts: 70
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Re: Big Block/TH400 Guys, I Need A Pic Please
Is this what you're looking for? It's on my 69 and I don't know if it's the same as a 70.
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69 Chev C20 396 T400 Dana 60 3.54 A/C Daily Driver - Stolen 67 Chevy C20 CST |
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#7 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Big Block/TH400 Guys, I Need A Pic Please
Here is a pic of the kickdown switch as mounted on a Q-Jet carb.
Jim |
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#8 |
Registered User
Join Date: Oct 2006
Location: fort worth texas
Posts: 395
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Re: Big Block/TH400 Guys, I Need A Pic Please
the turbo400 uses a electric kickdown the thing bolted to the base of carb is activated at wot and sends 12v to the spade connector on drivers side of trans u can do away with that big swich and use a mini microswitch like the ones used on a nitrous system 12v coming in to swithc and 12v coming out a wot
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#9 |
Registered User
Join Date: Jan 2004
Location: Elmira, Oregon
Posts: 449
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Re: Big Block/TH400 Guys, I Need A Pic Please
My 71 looked almost exactly like the one in the pic from Texas C10. The solenoid has nothing to do with AC as mine was not an AC truck. There is no kick down switch for the TH400 on a 71 or 72. Can’t say about the 70 though.
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Enjoying life again. Time to get those big blocks rolling. |
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#10 |
Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: Big Block/TH400 Guys, I Need A Pic Please
It is weird my 78 has nothing on the carb at all. My 72 looks like the first picture. Both trucks have TH400s and AC. I have no idea how the TH400 kickdown works.
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#11 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Big Block/TH400 Guys, I Need A Pic Please
Here is a picture of the kickdown switch for the TH 400 as used on the 71-72 trucks. It is mounted inside the cab above the accelerator pedal.
Jim |
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#12 |
Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: Big Block/TH400 Guys, I Need A Pic Please
Thanks Jim! I will check my trucks for that type of switch.
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#13 |
Registered User
Join Date: Sep 2006
Location: League City, Texas
Posts: 732
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Re: Big Block/TH400 Guys, I Need A Pic Please
Both my 78 and 72 C10 have that same kickdown switch.
Thanks for the info and sorry to have highjacked! |
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