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78 F150 300 I6 to 351W swap

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  #31  
Old 06-09-2011, 06:52 PM
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Originally Posted by kyleu890
how is the 300 6 clutch working out for you, did you have to change anything or add anything to make it work? when you put in the 351 engine perches did you use the same holes as the 300 or a different set?
Originally Posted by kettle-one
So with the 400/351m towers, where did you place them? in the same location as the i300 towers? I'm thinking of going 351w instead of 460 to swap my low oil pressure having 351m.

The 300 6 clutch works fine, no issues. Only thing I had to change was the equalizer bar bracket. I used a different set of holes for the 351/400 purches, they frame is already predrilled for them so you simply just bolt them on using existing bolts and holes.





Originally Posted by justforkicks
nice thread! that motor looks right at home in that truck. i'm going to be building a 400 this summer (it's gonna be 340hp/400ftlbs, and that's all before 4000rpm). does the new motor put you back in the seat?
The new motor runs strong,it lacks some low end though do to the cam I put in it. I have to get it above 3000 RPM for it to really come alive. It will smoke the 35s through 1-2 and chirp going into 3rd so its not to bad.
 
  #32  
Old 11-02-2011, 01:41 PM
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What other holes did you use? We're they closer to the front of the truck or the back? And what does this clutch equalizer bracket do?
 
  #33  
Old 11-02-2011, 08:27 PM
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The holes are close to the 300 holes, you use the shock mount holes as one of them I remember. Once you have the perches you will be able to see where they line right up.

The clutch bracket is the one that bolts to the block, the 300 bracket doesn't line up right on the 351.

Looks something like this.
 
  #34  
Old 05-19-2012, 09:38 PM
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Where did you get that bracket?

Where can I find that bracket?
 
  #35  
Old 05-19-2012, 11:14 PM
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I couldn't find a new bracket, I ended up with a used one off a late 70s F150 with a 302/4spd.
 
  #36  
Old 05-20-2012, 08:15 AM
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Thanks, so just to clear up what motor mounts did you use with the 351 Windsor? I'm doing the same swap and some personal expierence would be great. What truck did you get them from?

Jared
 
  #37  
Old 05-20-2012, 09:40 AM
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These are what I used
Extreme Duty Poly Motor Mounts,302,351W

If you are on a budget these will work just fine as well.
Motor Mounts 302, Pair

If you have a 4x4 make sure the frame perches are from a 351/400M 4x4, the 2wd ones are different.
 
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