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Apr 15, 2008 | 06:50 PM

roostnu074

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From: kerrville tx

74 f250

trying to find out if i can drop a 6.9 diesel into my 74 f250. it already has a 390 but its out of power and needs alot of work. and gas milage is not that great either. also will my c-6 tranny bolt to the 6.9??

Apr 15, 2008 | 09:18 PM

fire7882

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c6 should bolt up fine. I'm not sure about the mounts but you should have room and the wireing should also be fairly easy. You may also need new fuel tanks for a diesel.

Apr 16, 2008 | 12:10 AM

mattsautobody442

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From: Ohio

you'll have to find a vrv for the c6 to operate correctly

Apr 16, 2008 | 12:57 AM

RCrawler

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From: Southern Oregon USA

Quote:

Originally Posted by fire7882

c6 should bolt up fine. I'm not sure about the mounts but you should have room and the wireing should also be fairly easy. You may also need new fuel tanks for a diesel.

The FE C6 will not work behind the diesel. You'll need to find a diesel C6 to match the bellhousing pattern.

Jason

Apr 16, 2008 | 01:23 AM

roostnu074

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From: kerrville tx

what is the vrv??? this is something new to me. iv always been into the 7.3 but i never looked into it enough to know alot.

Apr 16, 2008 | 01:32 AM

RCrawler

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From: Southern Oregon USA

Vacuum Regulating Valve specific to the diesel C6. I believe that it controls shifts based on engine load, like a vacuum modulator.

Jason

Apr 16, 2008 | 02:09 AM

roostnu074

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From: kerrville tx

ok the other guy mentioned something bout getting that for the c6 that i have now, will that work or no??

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Apr 16, 2008 | 10:14 AM

mattsautobody442

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From: Ohio

yeah, you could use a cable linkage setup from a newer truck. the VRV uses vacuum from the pump, and the throttle at the IP to create a signal the modulator can use to shift correctly

Apr 16, 2008 | 10:29 AM

#10

RCrawler

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From: Southern Oregon USA

Quote:

Originally Posted by fellro86

. A headache you will have to see if will work out is the steering linkage clearing the oil pan, as it runs behind the crossmember, while the diesel trucks run it ahead of the cross.

I think his truck is a 4wd, so that shouldn't be an issue.

Jason