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Just wanted to get some thoughts here. I decided to swap my clapped out 351w for a 351m I rebuilt. Decently large cam, aluminum intake, Holley 750 double pumper, mid length headers, gear drive timing. Behind it I had my big block c6 built to hold abt 500 horse w heavy duty borg warner parts and a boss hog 2500 stall converter. Feed back?
Why do you want the Windsor out? just curious. You seem like you're strapped for resources, might do a whole lot better selling or exchanging the 351M and fixing/buying another 351W.
Why do you want the Windsor out? just curious. You seem like you're strapped for resources, might do a whole lot better selling or exchanging the 351M and fixing/buying another 351W.
I think it would be cool. It’s taken a lot of work including making custom motor mounts. I’ve searched and searched and never seen anybody swap a 351m into these newer truck. I get because the motor wasn’t the greatest ford ever made, but I figured I had it and I’d try it. It’s an experience and it shows that it can be done, even though others told me it wouldn’t work
I have a 351M in my truck and have been driving it as a daily for almost 7 years now. I cammed it, edel intake, edel 1406 carb, headers and mild exhaust, 3g alt, efan, 4" lift, 33" tires, stock C6, and stock axle gears. I get just under 10 mpg. I am also very light on the right foot. Hopefully this will give you an idea of what to expect. I am the opposite, I want a 351W. Cheaper parts and usually better mpg.
I have a 351M in my truck and have been driving it as a daily for almost 7 years now. I cammed it, edel intake, edel 1406 carb, headers and mild exhaust, 3g alt, efan, 4" lift, 33" tires, stock C6, and stock axle gears. I get just under 10 mpg. I am also very light on the right foot. Hopefully this will give you an idea of what to expect. I am the opposite, I want a 351W. Cheaper parts and usually better mpg.
I appreciate the feedback. I’m not too worried about gas mileage, as should anyone if you’re driving a bronco lol. My clapped out old 351w matched with the foot of an 18 year old boy, I was maybe getting 5mpg. No lift, 33’s. Hoping to get better w the new motor
I can understand the possible advantage going to the W motor......however I doubt it would ever produce the torque and HP of the M/400 without more money. My brother had a 79 with a 400 with a crane cam and it was a "hoss" ! If you research parts list you can probably come up with ford mounts/parts to install a M/400 in that frame. I once put a 460 w/c6 into a 69 galaxie 500 XL that had a 390 using ford frame brackets and mounts, so It can possibly be done. The issue will be how close the 85 frame is to the 79 frame so you can use the frame pads for the motor mounts. LMC still shows the 400 motor mounts and I think (last I saw anyway) they show the frame mounts for the 79. If the frames are not too much different that might work. If I had the time, I would do a 400 w/alum heads, retro roller cam, FI and the E40D tranny------in a heartbeat !
find a set of australian heads, that will wake it up a little more and give a compression boost too. you will have to be careful how much total timing you run after that.
find a set of australian heads, that will wake it up a little more and give a compression boost too. you will have to be careful how much total timing you run after that.
Do you know the numbers for a set of Aussie heads for it?
I can understand the possible advantage going to the W motor......however I doubt it would ever produce the torque and HP of the M/400 without more money. My brother had a 79 with a 400 with a crane cam and it was a "hoss" ! If you research parts list you can probably come up with ford mounts/parts to install a M/400 in that frame. I once put a 460 w/c6 into a 69 galaxie 500 XL that had a 390 using ford frame brackets and mounts, so It can possibly be done. The issue will be how close the 85 frame is to the 79 frame so you can use the frame pads for the motor mounts. LMC still shows the 400 motor mounts and I think (last I saw anyway) they show the frame mounts for the 79. If the frames are not too much different that might work. If I had the time, I would do a 400 w/alum heads, retro roller cam, FI and the E40D tranny------in a heartbeat !
Definitely a cheaper build. The motor mount “pedestals” so to speak, are quite a bit different. The 78/79 come up and sit above the frame about 4 inches, while my 85 has the ones that sit flush with the frame. I have figured out a motor mount solution though. I got off the stud and drilled all the way through. I welded a longer bolt through it and made a 1-1/4 inch spacer to go between the mount and “pedestal”. Now to space the tranny a bit to level it out. It’ll work
Just wanted to get some thoughts here. I decided to swap my clapped out 351w for a 351m I rebuilt. Decently large cam, aluminum intake, Holley 750 double pumper, mid length headers, gear drive timing. Behind it I had my big block c6 built to hold abt 500 horse w heavy duty borg warner parts and a boss hog 2500 stall converter. Feed back?
I have a 1985 bronco and I’m thinking about buying a 1981 f150 with a 351m to swap into my bronco. Do you think I could just swap the 351m and trans into my bronco and still use my 4wd and what about wiring?
06-03-2019, 01:20 PM
