351W VS. 351 modified

dcmustang

New Member

Sep 5, 2007

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Edmond, Oklahoma

Oct 16, 2007

#1

• Oct 16, 2007

• #1

Hey guys I want to build a 408 roller for my mustang and my dad has a 1982 Ford E350 box van sitting out back. I know it has a 351 but I dont know how to tell if it is a Windsor or a modifed, these are the only two offered during 1982 so does anyone know how to tell before I pull it out? thanks

 

M

Mike85000

New Member

Feb 22, 2007

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Oct 16, 2007

#2

• Oct 16, 2007

• #2

Easy way to tell is the amount of bolts on the valve covers.

Windsor block will have 6 valve cover bolts, 335 Series will have 8.

Windsor will have thermostat housing on intake, 335 series will have it on the block.

 

PUNISHER RACING

Active Member

Aug 27, 2007

1,124

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FORD CITY, PA.

Oct 16, 2007

#3

• Oct 16, 2007

• #3

Look at the timing cover and valve covers the valve covers on a windsor look just like a 302's , also the timing cover it a bolt on on a modified it is cast into the block. The 351 modified is kind of big block looking.

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

9,516

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99

Arkansas

Oct 16, 2007

#4

• Oct 16, 2007

• #4

Mike85000 said:

Easy way to tell is the amount of bolts on the valve covers.

Windsor block will have 6 valve cover bolts, 335 Series will have 8.

Windsor will have thermostat housing on intake, 335 series will have it on the block.

Click to expand...

Yep

If it is a 351M, I would pass it...

I would look for a 351 Windsor.

The 351M's (335 Series) do not have as big of an aftermarket. You could go with the 400 (4" stroke, over the 3.5"), or some 434" stroker kits, but the heads and intake options are very slim