Has anyone put a 454 in a 1947 2-ton? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

47twoton · 04-17-2013, 01:56 PM

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!

47twoton

Truck Guy99 · 04-17-2013, 02:12 PM

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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Luther Grimace · 04-17-2013, 03:36 PM

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.

47twoton · 04-17-2013, 09:08 PM

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.

Truck Guy99 · 04-18-2013, 12:08 PM

Pics or it never happened.

YahamaR1 · 04-18-2013, 12:31 PM

Its not a 2 ton, but a 454 will fit..[IMG]

[/IMG]
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[IMG]

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**buggy5872** · 04-18-2013, 01:52 PM

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.

YahamaR1 · 04-18-2013, 01:55 PM

Quote:

Originally Posted by buggy5872

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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04-17-2013, 01:56 PM	#1
47twoton Registered User Join Date: Apr 2013 Location: Austin TX Posts: 9	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! 47twoton

04-17-2013, 02:12 PM	#2
Truck Guy99 Registered User Join Date: Aug 2011 Location: Elk City, OK Posts: 332	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!!!! Posted via Mobile Device

04-17-2013, 03:36 PM	#3
Luther Grimace Registered User Join Date: Jun 2012 Location: Madison, AL Posts: 380	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. __________________ 1955.2 Chevy 3100, 6bt, Getrag G360 5-speed, NP205, Dana 60/70 - http://67-72chevytrucks.com/vboard/s...d.php?t=536540 1992 Chevy K1500 Silverado ECSB 1965 "Crewcab" Chevelle 300 Deluxe - soon to be LBZ Duramax/4L85E powered

04-17-2013, 09:08 PM	#4
47twoton Registered User Join Date: Apr 2013 Location: Austin TX Posts: 9	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.

04-18-2013, 12:08 PM	#5
Truck Guy99 Registered User Join Date: Aug 2011 Location: Elk City, OK Posts: 332	Re: Has anyone put a 454 in a 1947 2-ton? Pics or it never happened.

04-18-2013, 12:31 PM	#6
YahamaR1 Registered User Join Date: Oct 2011 Location: The Netherlands Posts: 547	Re: Has anyone put a 454 in a 1947 2-ton? Its not a 2 ton, but a 454 will fit..[IMG][/IMG] Posted via Mobile Device [IMG][/IMG] __________________ My chevy 51...... http://67-72chevytrucks.com/vboard/s...d.php?t=541148 www.knutselracing.nl

04-18-2013, 01:52 PM	#7
buggy5872 Senior Member Join Date: Jun 2011 Location: North Beaver TWP PA Posts: 833	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. __________________ ___________________________ 1959 Apache Short Fleetside, 1959 Apache NAPCO Long Stepside, 1957 3100 with 59 fleetside bed 1957 5700 LCF Crew Cab "Big Bertha",1959 GMC F370 1958 GMC 600, 1946 Chevy, 1959 Viking 60 LCF 1974 Elcamino SS, 1979 6500 GMC Tilt Bed Wrecker Big Bertha Build



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