t56 swap into 77-90 b body - Chevy Impala SS Forum
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Old 11-25-2012, 05:22 PM
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Default t56 swap into 77-90 b body

Im going crazy. I have tried to find information on this swap. I remember years ago i found many articles and blogs. These days all I have come up with are dead links and pictures of cars that had it done with no technical info or pictures of the actual pedal placement, crossmember etc. Will the f2b kit fit my firewall? has anyone done this swap on a 77-90 "box" caprice. i would love to find some solid information. Im gearing up to do this and dont want to waste money on the wrong parts.
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Old 11-25-2012, 06:21 PM
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My friends and I put a 4 speed and a 403 Olds in a 78 Olds 88 coupe (B body too). The engine was from a 77 Trans Am and the bell, trans & pedals was from a 400 T/A. Ran good. I know this doesn't apply here, but I just remembered the 4 speed boxy.


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Old 11-26-2012, 10:36 AM
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90% sure it's the same.
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Old 02-22-2013, 02:15 PM
Impala77 Impala77 is offline
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I have two stick '77 B bodies. Both are 2 doors. My Impala has a t-56 and my Caprice has a Super t-10. I used modified original brake pedals for the clutch and brake pedals. The brake pedal is stock on top and the bottom half is from a '91. The '91 pedal steps over toward the gas pedal more han the stock pedal but it is different on the top where it hangs. By using the stock pedal on top it fit right and the step to the left from the '91 pedal got it away from the clutch pedal. For the clutch pedal I hung the stoc brake pedal next to where it used to be and trimmed the foot pad to size. The top part where the bolt goes through needed to be trimmed also. This give you a set of pedals that are the right lenght and shape for the floor. Some of these "box" cars came with hydroboost brakes. I converted mine with factory parts. This gives a lot more room on the firewall to mount a clutch master cyl right next to the hydroboost unit. Both mine use a hydrolic throw-out bearing. The only real fab work is the pedals and a mount for the clutch master that piggy-backs on the hydroboost mount. Both of mine have been in service for 5 or 6 years. The hydroboost unit is available at any parts store or a yard. same with the powersteering pump and related hoses.
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Old 02-22-2013, 02:40 PM
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Impala77: That's a good idea on the pedals. What are you using for the trans crossmember?
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Old 02-24-2013, 09:33 PM
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Default Re: t56 swap into 77-90 b body

heres what my set up looks like. it took a bit of adapting to get the f2b kit to work on the 79, but not a whole lot.

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Old 02-24-2013, 09:34 PM
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Default Re: t56 swap into 77-90 b body

better shot

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Old 02-26-2013, 11:35 PM
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my friend rick has a 80 lesabre with a 5 speed think he used s10 parts mostly
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Old 03-04-2013, 04:59 PM
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Default Re: t56 swap into 77-90 b body

i pulled the FI intake manifold, cleaned the old gasket gunk off, removed the msd and installed the blockoff plate. i would have installed the new carb'd intake but the gaskets didnt show up. all i need now is a carb, and the engine is ready to drop in the caprice...anyone know if i have to change the camaro oilpan?

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Old 03-04-2013, 10:45 PM
The Caretaker The Caretaker is offline
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I think you'll be alright hot rod.oil pan should clear.post some pics of it in and plumbed.im doing a similar swap in my 71. We can compare notes.
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