Help Needed Swapping a 300 "I" 6 for a 95' 7.3

Diesel1050

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I want to swap the 300 straight six gasser in my 89' F-250 for a 7.3. Found one out of a 95' F-350, and want to know if the current trans will bolt up? Its a 4 speed with overdrive. Thanks!

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DaveBen

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You will need a bell housing that bolts up to the 7.3. I am not sure the tranny will handle the torque. Get the 5 or 6 speed that goes with the 7.3 :welcome to SDD!

Dave
 

Diesel1050

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Well that's half the question! We're getting some where! Glad to know the 89' has a tranny with a removeable bellhousing. If it helps, the F-250 has a manual trans, with 1st,2nd,3rd,4th, and "D" (Overdrive)? And the transfer case shifter lever is on the floor to the left of the tranny shifter. It should be a Borg-Warner T-18 right?

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79jasper

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Well, I don't know about the gassers, but the diesels had the zf. Which has a non removable bell. I know it was offered on gassers also, so may want to check.

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DaveBen

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It has been a while since I owned my 7.3. Yes it had a ZF and it was one piece housing. Sorry I didn't remember that. Diesel engines usually have SAE numbered housings (1 or 2).

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BIG JOE

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And FWIW ? I'd be sure there's enough suspension and frame work under the 89 to support and.... take the weight of a 7.3.

Purdy good model year verses engineering spread there ?

Joe
 

Diesel1050

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What tbe heck is "FWIW"? Definitely should be enough frame work, it's going to be lifted about 12", and I have some frame reinforcements planned.

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Diesel1050

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So is the ZF the same bolt pattern for gassers AND diesels?

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79jasper

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"For what it's worth"
And no, the zf has 3 bolt patterns. Small block, big block, and diesel.

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Diesel1050

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So this mist have a ZF. The case is 1 piece. Now the question, do I have to find a different tranny to mate to the 7.3?

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