7.3 to 550 cubes

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Nov 24, 2007 | 06:11 PM

2 stroke man

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From: somerset KY

7.3 to 550 cubes

i heard today that you can go to a junk yard and get crank and rods out of a big 550 international v8 motor and bore out our trucks and add that crank and pistons and rods, and crank the fuel up, and abra kadabra, you got an even bigger beast than we got!

Nov 24, 2007 | 06:37 PM

FFemt5287

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if this is true, we have sparked my interest........

Nov 24, 2007 | 06:58 PM

79f-250custom

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From: Wisconsin

can you even bore PS's out that much to fit a 550 piston in it????
Mitch

Nov 24, 2007 | 07:28 PM

barebackjake

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From: STEPHENVILLE,TX!!!!!

hmm first ive heard, id imagine the v-549 has a longer stroke which i bet makes alot of the extra displacement there. the 549 is a MUCH bigger motor than ours ive seen alot of theese on generator sets i cant imagine the crank would fit in our blocks

Nov 24, 2007 | 07:50 PM

2 stroke man

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From: somerset KY

ya the guy said it would fit. just change crank, bore it, pistons, and buy a fuel refinery

Nov 25, 2007 | 08:54 AM

c00nhunterjoe

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From: Belair md

very interesting i am still skeptical though, imagine the injector uprada needed just to run it

Nov 25, 2007 | 09:30 AM

Knotwild

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From: Rincon, GA

550 V8

In 1989 I was in the fertilizer business and I ran two IH diesel 4x4 spreader trucks. One ran the DT 466 and the other had the 550 in it. It was a massive motor, naturally aspirated, and to this day, I have never seen anything make the low end torque that motor did. It would walk off with 10 tons of lime in a bottom plowed field. With the turbo DT466 I had to pack some ruts in low range first gear, then back up and get a running start. If I didn't keep the rpms up, it would stall in a turn. The 550 just kept going and would pull the rpms right back up after a turn. I can't imagine all of that in a pickup or what it would do if you hung a turbo on it!

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Nov 25, 2007 | 05:32 PM

tfrugal

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my books dont have anything like crank length... the crank journals are are 3.2495-3.2506 (406) and 3.124-3.125 (549) so i dont think so...
the 446 is 3.1228-3.1236, the 537 and 605 is 3.1235-3.1245, 478 is the same as 549.

hope this helps, i dont have a manual that covers the 6.9/7.3