4v heads too?
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
4v heads too?
today i discovered that the 351m that we have in a 86 1 ton is a 4 barrel w/ factory holley. but what really has me curious is the heads. would they be 4v heads? or did ford just plop a 4v intake onto 2v heads? also i was kinda more curious about the carb and what size it is?
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
That would not be a factory setup. Ford discontinued the 351M/400 in 1982. Ford never made any 4V intakes for the 351M/400. Most likely what you have is a 460. You can find more info re your engine in the 460 engine forum.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
count your valve cover bolts that will tell you which engine you have, but torque1st, is correct you wouldn't have a 4v 351m or even a 351m at all factory anyway.
if you have 6 bolts 302 or 351w, 8 bolts = 351c 351m/400; 7 bolts 429/460
but I definatly agree it is probably a 460
if you have 6 bolts 302 or 351w, 8 bolts = 351c 351m/400; 7 bolts 429/460
but I definatly agree it is probably a 460
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
dang! 351w! i went out and checked again and actually looked at the engine.it has the small valve covers and small block style exaust manifolds. just shows what 9 years of a vehicle in storage will do! but why a small block in a 1 ton?
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Some Fords were not created equal. I would have bet against a 351Wheezer in a 1 ton also. I guess if you wanted a small V8 that would have been the only option. I think a 300-6 probably had higher ratings in that truck tho. The 300-6 had higher tow ratings etc than the 351W in my 85.
Thread Starter
|
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
on the manual that i have. the 4bbl 351 wasn't very far behind as far as horsepower goes (torque was another story though, probably why it has 4.10's) but mt dad did say that even with a lod on it, it never really grunted. its only problem, until the rod let go, was that it would blow 6-7 foot flames when it backfired!
