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Old 04-17-2013, 01:56 PM   #1
47twoton
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Has anyone put a 454 in a 1947 2-ton?

Hello fellow builders,

We've recently acquired a rustic '47 grain truck...a two ton model with a 231 upgrade somewhere along the timeline. Hoping to shoehorn in a 7.4L to put her back to work. 4L80e and BBC courtesy of a 1992 RV with 60k miles. Wondering if anyone has advice on this swap and/or photos, measurements, caveats, etc.

Many thanks!

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Old 04-17-2013, 02:12 PM   #2
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Re: Has anyone put a 454 in a 1947 2-ton?

My advice would be to box that frame. That engine was cranking out 105 hp at BEST when it was new. Now your stuffing in a big block with about double the horses? I would either box the frame of use the rv frame and do a body swap. If this is going on a highway much, you may want to swap out the axles for better brakes and gears. Just remember though, THIS IS WORTHLESS WITHOUT PICTURES!!!!
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Old 04-17-2013, 03:36 PM   #3
Luther Grimace
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Re: Has anyone put a 454 in a 1947 2-ton?

What TruckGuy said about the brakes is good advice. I'm trying to remember where I saw someone putting a Big Block in an old farm truck. I'll look for it. The frame on the 1 tons and up was a thicker and taller I believe? Probably be more apt to take the abuse. Can't wait to see pictures.
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Old 04-17-2013, 09:08 PM   #4
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Re: Has anyone put a 454 in a 1947 2-ton?

Thanks for the replies Truck Guy and Luther G. You're right about the photos...worth a lot. Have yet to see any from a similar build, so would be of great value to me at this point. It looks really tight up front but if a 350 will fit, the 454 may have enough room too. I'll definitely post photos once some progress is made. Should be an interesting project.
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Old 04-18-2013, 12:08 PM   #5
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Re: Has anyone put a 454 in a 1947 2-ton?

Pics or it never happened.
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Old 04-18-2013, 12:31 PM   #6
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Re: Has anyone put a 454 in a 1947 2-ton?

Its not a 2 ton, but a 454 will fit..[IMG][/IMG]
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Old 04-18-2013, 01:52 PM   #7
buggy5872
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Re: Has anyone put a 454 in a 1947 2-ton?

You might want to look into swaping out the heads on that 92 454. those were the worst big block heads gm ever produced. A good up grade is the 96-99 454 vortec heads. I did it on a 91 I had and it made a huge difference.
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Old 04-18-2013, 01:55 PM   #8
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Re: Has anyone put a 454 in a 1947 2-ton?

Quote:
Originally Posted by buggy5872 View Post
You might want to look into swaping out the heads on that 92 454. those were the worst big block heads gm ever produced. A good up grade is the 96-99 454 vortec heads. I did it on a 91 I had and it made a huge difference.

What is the problem with this heads,?
The engine runs good..
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