vacuum diagram
vacuum diagram
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
The stock engine in a 79 would be a 351M.
Engine Identification (rev):
======================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
-There are other indicators but these are enough to distinguish engine families.
Looking at the block at the base of the distributor the 351C will be even with the bottom of the intake manifold. With a 351M/400 there will be a ~1" high lip up to the bottom of the intake manifold.
Engine Identification (rev):
======================
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.
-There are other indicators but these are enough to distinguish engine families.
Looking at the block at the base of the distributor the 351C will be even with the bottom of the intake manifold. With a 351M/400 there will be a ~1" high lip up to the bottom of the intake manifold.
Thread Starter
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New User
Joined: May 2007
Posts: 6
Likes: 0
I have a 351W it's not the original motor from all the info I recieved. Thank you for everyones help you are all awesome.
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Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Only Econolines offered the 351W engine in the 1970's (first year:1975). F Series trucks didn't come with a 351W till 1980. It was an option over the 300 6 cylinder and the 302.
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New User
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Originally Posted by bluecrewman
I have a 351W it's not the original motor from all the info I recieved. Thank you for everyones help you are all awesome.
Lead Driver
Joined: May 2007
Posts: 6,993
Likes: 15
From: Costa Mesa, CA
gonna piggy-back on this one if you don't mind.
While your digging through files - can you see if you have the vacuum diagram for the 1977 460 Mil1ion?
If you need the codes from the sticker earlier in your post - where would it be found? Driver's door jamb??
Thanks.
While your digging through files - can you see if you have the vacuum diagram for the 1977 460 Mil1ion?
If you need the codes from the sticker earlier in your post - where would it be found? Driver's door jamb??
Thanks.
Lead Driver
Joined: May 2007
Posts: 6,993
Likes: 15
From: Costa Mesa, CA
Thanks Dennis. Is there a way to zoom in on those photo's/scans though?
I can't really read it, so I did a "save as" and opened it in photoshop... Once I zoomed in there it was too blurry to read.
I'm sure I'm missing something obvious...
I can't really read it, so I did a "save as" and opened it in photoshop... Once I zoomed in there it was too blurry to read.
I'm sure I'm missing something obvious...