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#1
04-26-2002, 05:32 AM
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Here is my question, I am looking to upgrade from a 2bl to a 4bl carb and my first question is will I need a trans kick down by going to the 4bl? I currently have a 2sd powerglide in it now and will down the road upgrade to a T-400, which brings me to Part2 if I don't need one for the P.G.will I need one for the 400?
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"It beats pickin' cotton and waitin' to be forgotten" |
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#2
04-26-2002, 05:32 AM
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Here is my question, I am looking to upgrade from a 2bl to a 4bl carb and my first question is will I need a trans kick down by going to the 4bl? I currently have a 2sd powerglide in it now and will down the road upgrade to a T-400, which brings me to Part2 if I don't need one for the P.G.will I need one for the 400?
__________________
"It beats pickin' cotton and waitin' to be forgotten" |
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#3
04-28-2002, 05:12 PM
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Yes, you'll need a kick down cable. The TH350/400 use a cable to mechanically actuate the downshift function of the tranny. There were two ways of connecting the downshift cable; one was to connect it to the carb the other was to connect it directly to the accelerator pedal. My TH350 came out of a mid 70's Buick Century and that is how the kickdown cable was routed. The original 2 speed SuperTurbine 300 (please don't call it a PowerGlide) used an electric switch for this function. The ST300 is the precourser to the TH350 and is basically a TH350 minus first gear. The TH350 is a lead pipe cinch to swap; it is idenitcal in all exterior demensions to the ST300.
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Mike |
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#4
04-28-2002, 07:07 PM
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THM400 uses a switch to activate the kickdown, just like the ST300.
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So long, farewell. |
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#5
04-28-2002, 08:49 PM
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Pontiac put the kick down switch on the gas pedal bkt under the dashboard for the th-400. Check the junk yards, also B&M transmissions has one that mounts under the hood to your throttle linkage.
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"Three may keep a secret, if two are dead" ~ Benjamin Franklin ~ |
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#6
04-28-2002, 09:37 PM
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Joe, it's a '66 Tempest, right? Is your kickdown right now mounted on the carburetor or the gas pedal? You will have to worry about the crossmember mounting when you get to putting the THM400 in.
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So long, farewell. |
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#7
04-29-2002, 04:45 PM
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Ok, if I just swap the 2bl. for a 4bl. for now will I need anything other than intake and carb? (yes I know gaskets etc) My concern is will I need a different kick down other than the one thats under the dash for the 2bl.? Thanks for the help.
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"It beats pickin' cotton and waitin' to be forgotten" |
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#8
04-30-2002, 04:44 AM
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The only other thing I can think of is the carburetors throttle linkage.
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So long, farewell. |
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