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Author Topic: Will it fit?  (Read 2457 times)

Offline Jireh Customs

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Will it fit?
« on: February 08, 2011, 11:10:34 pm »
I am looking at buying a 1973 one ton work truck with a worn out 454 and th400 trans. Will a Pontiac 455 and th400 bolt right in of will it be a headache?
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Offline Layne

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Re: Will it fit?
« Reply #1 on: February 09, 2011, 12:00:49 am »
Is the th400 BOP style?
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77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.

Offline Jireh Customs

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Re: Will it fit?
« Reply #2 on: February 09, 2011, 12:10:37 am »
The th400 with the 455 is bop
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Offline Layne

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Re: Will it fit?
« Reply #3 on: February 09, 2011, 12:12:20 am »
I think the only issue you'd have is the motor mounts, and I'm not sure of the adaptors. I've never done this swap, but I'm sure more experienced guys on here will have some words of wisdom.
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77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.

Offline Captkaos

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Re: Will it fit?
« Reply #4 on: February 09, 2011, 09:50:03 am »
To get it to bolt in you probably need to make mounts if the engine is a pontiac.
An olds can be made to bolt right in if you use 5.7L diesel engine mounts and stands.
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