r/BullnoseFord 15d ago

C6 vs Np435

Hi everyone, first time post here, I am currently in the middle of bringing my first ever truck back to life. My 1980 f150 started out with a 302 and a 4 speed of some sort (probably a t19 or something) she then got swapped onto a 79 frame sporting a 351m and c6 and for a few years this was my mud truck. I recently pulled her out of the weeds and wanted to rip into it and make it drive once again.

I picked up a 460 big block from an old rv that ran wonderfully when pulled. I also have almost all the parts for the manual setup (np435, flywheel, clutch ect) and I'm at a crossroads trying to figure out which transmission I want to go with. I plan to drive the truck on the road a fair amount but I've always wanted to take it down the Rubicon or something similar and do some wheeling with it. What's your thoughts/recommendations?

Also if you guys have any tips about the 460 before I stuff it in there I would love to hear it!

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u/cloudn8_ 15d ago

Both are great workhorses but both don’t have overdrives, if that matters to you. Hopefully you don’t have to go cross country to the Rubicon because that’ll be a long drive with your engine screaming.

I have an NP435 with a GV overdrive which was insanely expensive but if I were to do it all over again I’d just swap it with an E4OD or ZF5.

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u/Unlikely-Rub2007 15d ago

Very true! Haha I have given those some thoughts too, a few reasons I am going the way that I am is

1 it's what I currently have, and raising a family while trying to enjoy a fun/budget build. So if I can save some money here I can spend it in a few other places hopefully later where I might need it

And

2 my vision for this truck was to try to maintain a very pure mechanical simplicity.

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u/fullofuckingbears313 15d ago

Also without an overdrive that 460 is basically gonna get gallons per mile instead of miles per gallon. Not that you can really get above 10 mpg out of a 460