Dropping a 250 into a Bronco

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chad
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Re: bronk 4.1L ('69 - '83) falcon motor, 240tq @ 1600 rpm,

Post #51 by chad » Fri Nov 13, 2015 8:11 am

Thanks 4 the post-back!
chad wrote:I see a 'fancy' Saginaw PS pump which has dual duty (hydrobost breaks/steering) I assume.
What part number or yr/make/model did you source the PS pump

Also Che**y I assume - a late '90s pump is it?
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

jimmyv65
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Re: Dropping a 250 into a Bronco

Post #52 by jimmyv65 » Fri Nov 13, 2015 8:42 am

It is Cheby. There was no trick to that one. I know a bunch of Fords had them. If you find a good used booster, any of them would work. It's just the fabrication to mount it both to the truck and to the master cyl.

There is a guy in the classic bronco's web forum that has a bunch of these for sale used. He must run a bone yard with a fleet vehicle that had these. Astrovan postal trucks? Point being, I never went for a specific year and model. I am pretty sure they were all the same booster in all the years of Astrovan. So, any 90's Astrovan will get you to the same. You could go out to classic bronco in the parts for sale forum and search for hydroboost. I am guess that guy still has them for sale.
1966 Bronco-'78 250-Meagsquirted TBI, DUI, Header, Cam, Hydroboost & Front Disc, Uncut, 1" body lift, 2.0" suspension lift

hucklburry
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Re: Dropping a 250 into a Bronco

Post #53 by hucklburry » Thu Aug 03, 2017 2:17 am

Jimmy,

I need to do something similar for my clutch linkages, I've been staring at my block (had to drill and tap my block to bolt the bracket too) trying to see a different way and I don't.

Is that arm you built that angles up to the other bolt on the block substantial enough? Any flex or anything? You went round, I don't know if its solid,or if I should plan something stronger.

And why did you do the stand-off at the upper bolt? To get it more in line or ???

Let me know. Thank you

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Re: Dropping a 250 into a Bronco

Post #54 by jimmyv65 » Thu Aug 03, 2017 7:10 am

hucklburry wrote:I need to do something similar for my clutch linkages...


Here's some answers back:
-Is that arm you built that angles up to the other bolt on the block substantial enough? Any flex or anything?
Yeah, it has been great. No flex. I've got 4000 miles in and it still works well.

-You went round, I don't know if its solid,or if I should plan something stronger
Mine is solid, but some of that was because I had it laying around. I am sure you could get enough strength with a tube as well, if it was a larger tube.

--And why did you do the stand-off at the upper bolt? To get it more in line or ???
Yes, I figured it would be stronger with some of that angle take out.

I hope that helps. :beer:
1966 Bronco-'78 250-Meagsquirted TBI, DUI, Header, Cam, Hydroboost & Front Disc, Uncut, 1" body lift, 2.0" suspension lift

hucklburry
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Re: Dropping a 250 into a Bronco

Post #55 by hucklburry » Thu Aug 03, 2017 9:15 am

I appreciate it!

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chad
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Dropping a 250 into a Bronco: frame extensions, towers'n mounts

Post #56 by chad » Mon Oct 23, 2017 10:23 pm

I know this is an older thread, hope I'm not steppin on ya jimmy, but it's such a great build'n plenty stop by here to see what you've done. Can't remember if U covered it but…
I'm at the point of just bout droppin in the 250.

I just pulled the 170 (torched off the bent8 towers 34 yrs ago when replacin it w/the 170) and got the '77 Maverick mounts as a suggested way to 'raise the hood'…
my 170's towers are pretty beat & may replace them.

Will the Mav mounts go on the ol 170 towers? Don't look quite right. What towers should I get?
The frame wedges/extensions R still on the frame & painted.

Thanks to any passers by who've delt w/this.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

jimmyv65
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Re: Dropping a 250 into a Bronco: frame extensions, towers'n mounts

Post #57 by jimmyv65 » Tue Oct 24, 2017 7:58 am

chad wrote:Will the Mav mounts go on the ol 170 towers? Don't look quite right. What towers should I get?


Hey! I saw you were making the swap. I hope it goes well for you. I used the 1966 mounts and towers, so I don't know if I can help. Mine works, but in hindsite, I don't think my choice of motor mounts was the best. I hope someone jumps in with more on the Maverick Mounts.
1966 Bronco-'78 250-Meagsquirted TBI, DUI, Header, Cam, Hydroboost & Front Disc, Uncut, 1" body lift, 2.0" suspension lift

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chad
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250 in a Bronco: frame wedges, towers'n mounts

Post #58 by chad » Tue Oct 24, 2017 10:37 am

Thnx 4 swinin by with some input.
I'll lookit the '66's.

Did U move on to the TBI or efi on yours?
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

Broncofjg
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Re: Clutch Mod

Post #59 by Broncofjg » Sat Jun 30, 2018 3:56 pm

jimmyv65 wrote:The mount I had for the clutch mechanism wouldn't fit on the new set up. The pivot mount wouldn't line up and the equalizer bar was too wide.

I decided to shorten the equalizer bar by cutting it in half and re-welding with about an inch take out. The engine side pivot mount didn't line up on both holes(one on the engine, one on the bell housing). I cut off the back half due to clearance issues and welded up the bar that gave me a 2nd mounting point on the motor for the pivot bar.

Shortened Pivot Mount:
Image

Remote mount point and shortened equalizer bar:
Image



I’m about to swap out my 200 setup for a 250. I was curious about you clutch linkage setup. Did you modify the i6 clutch linkage support or the v8 linkage support? I was thinking the v8linkage support would work fine because the 250 uses the v8 bell house it.

jimmyv65
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Re: Dropping a 250 into a Bronco

Post #60 by jimmyv65 » Sat Jun 30, 2018 4:01 pm

I used the 6 cyl clutch stuff. I am sure you could make either one work.
1966 Bronco-'78 250-Meagsquirted TBI, DUI, Header, Cam, Hydroboost & Front Disc, Uncut, 1" body lift, 2.0" suspension lift

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chad
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not a 'drop in'

Post #61 by chad » Sat Jun 30, 2018 9:44 pm

bmbc is here as well.
I am in the middle of this. May do like wise or use the TB or WH efi clutch equalizer bracket or my own copy of em.

https://www.wildhorses4x4.com/product/E ... nco_Clutch

@ that point it's almost all the same 2 me- frame pivot, slip joint, tryangle, etc. Easy to mod.
hope this is what U R askin.
Come back if not.
:thumbup:
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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