Converting I6 250ci with 3 on the tree to 350ci small block with 350 autobox...

[Neatbeard]

.... Hi folks I apologise in advance if any of these are dumb questions but hey i'm gona ask em anyway!

I currently have a '66 SWB step side that has a 250 Hi Torque inline 6 motor and 3 on the tree manual gearbox.

I'm currently contemplating converting it to a 350ci small block with 350 auto box........

IF I was to go this route, other than the engine (and ancillaries, exhaust, etc) and gearbox, what else would I probably need to change?

Would I need a new prop?

I'm assuming i'd need a new column shifter set up as well?

I've been told the engine mounts should be the same so no change there.

Would I need any additional mounts, crossmembers etc. for this 350/350 combo?

Any advice, information, help, pointers to other threads etc. on this would be greatly appreciated so I can guage the amount of work involved and the probable costs involved.

Thanks in advance.
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[PGSigns]

You will need to get a tranny cross member And most folks cut out the old gross member for the bell housing mount. A V8 fan(prop) and shroud will be needed. It is a pretty popular swap. A trans cooler will also be needed. I used the Lokar shifter on mine when I went from 4 speed to auto and really like it.
Jimmy

[TJ's Chevy]

Bigger radiator as well. Throttle linkage will be different. And your motor mounts won't be in the exact same location on the frame.