351 differences
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Joined: May 2003
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351 differences
In my 74 truck I have a tired 302. I decided to put a 351 Windsor in it. Now I went to a buddy of mine who says he has a 351 Windsor for sale. When I get there I not sure that the engine Im looking at is a 351 windsor. I think it could be a 351 Cleveland or 351 M. Is there any way to tell the differences of these engines to tell them apart from each other? Thanks
Mountain Pass
Joined: Mar 2003
Posts: 211
Likes: 16
From: Georgia
351 differences
Cyrezman,
The Windsor engine had a 5 bolt straight valve cover, and the radiator hose connected to the intake manifold, it has 5/8 plugs, as the Cleveland, 8 bolt 2 plane valve covers, radiator hose does not connect to intake, 14 mm plugs....
C90E-B (69-70)
D2AE-BA (71-74)
D4AE-DA (71-74)
D4AE-AA (75-80)
These maybe some of the numbers casted on the side of the block if it's a windsor engine....Good Luck.....hope this helps..
The Windsor engine had a 5 bolt straight valve cover, and the radiator hose connected to the intake manifold, it has 5/8 plugs, as the Cleveland, 8 bolt 2 plane valve covers, radiator hose does not connect to intake, 14 mm plugs....
C90E-B (69-70)
D2AE-BA (71-74)
D4AE-DA (71-74)
D4AE-AA (75-80)
These maybe some of the numbers casted on the side of the block if it's a windsor engine....Good Luck.....hope this helps..
Last edited by wayneo; Jun 3, 2003 at 05:07 PM.
Posting Guru
Joined: Apr 2002
Posts: 2,244
Likes: 1
351 differences
Also - some of this may help;
"How to tell a 351W from a 302 or a 351C:
- Number of valve cover bolts per head - FE = 5, W = 6, C = 8,
M = 8, 335 Series (Big Blocks) = 7
- Thermostat Housing - W = on intake manifold, C = on block
- Fuel Pump - W = bolts on each side of block opening for fuel
pump.
C = bolts on top and bottom of block opening
- 351W water pump boss stops aprox. 1" or more from top of
block at bottom of head.
302 water pump boss goes right up to bottom of head
- 351W (and late 302 H.O.) firing order is 13726548.
302 firing order is 15426378
- 351W eighth digit of VIN = generally is H
- 351C has dipstick going into the block,
351M has dipstick going into the oilpan
351W - dimensions
- width outside of exhaust manifold to outside of exhaust
manifold = 25" (351C = 1/2" wider)
- height from bottom of oilpan to top of air cleaner = 29"
- length from front of fan pulley to rear of block = 29" "
Later,
"How to tell a 351W from a 302 or a 351C:
- Number of valve cover bolts per head - FE = 5, W = 6, C = 8,
M = 8, 335 Series (Big Blocks) = 7
- Thermostat Housing - W = on intake manifold, C = on block
- Fuel Pump - W = bolts on each side of block opening for fuel
pump.
C = bolts on top and bottom of block opening
- 351W water pump boss stops aprox. 1" or more from top of
block at bottom of head.
302 water pump boss goes right up to bottom of head
- 351W (and late 302 H.O.) firing order is 13726548.
302 firing order is 15426378
- 351W eighth digit of VIN = generally is H
- 351C has dipstick going into the block,
351M has dipstick going into the oilpan
351W - dimensions
- width outside of exhaust manifold to outside of exhaust
manifold = 25" (351C = 1/2" wider)
- height from bottom of oilpan to top of air cleaner = 29"
- length from front of fan pulley to rear of block = 29" "
Later,
