79 bronco motor question
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Senior User
Joined: Sep 2003
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From: N.Y.
79 bronco motor question
i just got a motor fro my bronco. right now its got a 351m in it and i just got a 351w this motor should mount right up right? cause there all the same block pretty much its just the emissions and **** on it so this should work right?
Elder User
Joined: Nov 2003
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From: Stanly County N.C.
Sorry to give you bad news but no the "W" block will not bolt up where a "M" was. The "M" motors have the big block bellhousing bolt pattern where the "W" uses the small block pattern. The only other motors that will bolt up to the trans is the 385 family, 429's and 460's
Postmaster
Joined: Feb 2003
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From: Spokane WA
the 351W shares a bellhousing patern with the 300 I-6, 255 V8, 302, 351C and one of the V6's (i think its the 3.8L)
your 351M shares a bellhousing bolt pattern with the 370, 400, 429, 460 and the 6.9L IH diesel.
your 351M shares a bellhousing bolt pattern with the 370, 400, 429, 460 and the 6.9L IH diesel.
Last edited by oldhalftons; Feb 19, 2004 at 09:27 PM.
Postmaster
Joined: Feb 2003
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From: Spokane WA
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Cross-Country
Joined: Dec 2003
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From: Que. Canada
actually it is the 3.8 i just changed one for a 302 due to the head gasket probs with the 3.8's
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Senior User
Joined: Apr 2002
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From: KC Metro
You probably wouldn't want to drop a 351w into a 78/79 Bronco anyways, it doesn't have nearly the brute low end that you need to haul that beast around town (I know, Ive had both engines)
Your best bet would be to get yourself a hold of a 351m block, they're easy enough to find at junkyards and even right here on FTE. Then build it to a 400, which is also easy enough, youcan find more information on that here in the 351m/400 forum, just use the search function, the topic has been beaten to death already.
Good luck!
-Pentekno2
Your best bet would be to get yourself a hold of a 351m block, they're easy enough to find at junkyards and even right here on FTE. Then build it to a 400, which is also easy enough, youcan find more information on that here in the 351m/400 forum, just use the search function, the topic has been beaten to death already.
Good luck!
-Pentekno2
