Differentiate 351W or C?
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Joined: Jun 1999
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From: Bander, TX (Hill Country)
Differentiate 351W or C?
Quickest way I tell the difference in the W and C is the waterneck on the W comes out of the intake manifold and out of the block on the C.. lots of other ways (like spread between the heads, etc) but this is a quick visual.
Horsepower is relative to the year models of the engines, 2V or 4V, application, etc.
Horsepower is relative to the year models of the engines, 2V or 4V, application, etc.
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Differentiate 351W or C?
[font size="1" color="#FF0000"]LAST EDITED ON 11-Jul-01 AT 09:23 PM (EST)[/font][p]Look at the spark plugs.
The Windsor heads use the big 13/16" plugs.
The Cleveland heads use the smaller 5/8" plugs.
The heads will NOT interchange.
I don't know what the numbers are, but the Cleveland produced more HorsePower and Torque.
The Windsor heads use the big 13/16" plugs.
The Cleveland heads use the smaller 5/8" plugs.
The heads will NOT interchange.
I don't know what the numbers are, but the Cleveland produced more HorsePower and Torque.
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Differentiate 351W or C?
[font size="1" color="#FF0000"]LAST EDITED ON 19-Jul-01 AT 03:32 PM (EST)[/font][p]LMAO @ the last few posts. The heads WILL interchange(slight mods needed) and the C/M IS NOT a big block!!!!
Considering there are at least 3 INSTANT visual clues to tell the C/M apart from the W, pulling spark plugs seems a little silly!!!
Considering there are at least 3 INSTANT visual clues to tell the C/M apart from the W, pulling spark plugs seems a little silly!!!
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Joined: Mar 2001
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Differentiate 351W or C?
You don't need to pull the plugs. Just look at them to determine which size socket you would need.
If you had to pull them out to determine which size socket you needed to pull them out, then how would you ever....??????????
If you had to pull them out to determine which size socket you needed to pull them out, then how would you ever....??????????
Senior User
Joined: Jun 2000
Posts: 458
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Differentiate 351W or C?
You don't need to pull the plugs. Just look at them to determine which size socket you would need.
If you had to pull them out to determine which size socket you needed to pull them out, then how would you ever....??????????
If you had to pull them out to determine which size socket you needed to pull them out, then how would you ever....??????????
Fair enough. But why pull plug wires when you're instantly/easily able to visually tell the difference between the two motors? At least you didn't defend your head interchangeability comment. LOL!!
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Differentiate 351W or C?
The easiest and quickest way, without breaking out any tools, is to lift the hood and look at the thermostat housing (where the top radiator hose goes to the motor). The Windsor engines (300, 302, and 351) have the housing on the VERTICAL FRONT, while the Cleveland engines (351C, 351M, and 400) have it on the HORIZONTAL TOP. And by the way, the Windsors are small blocks, the Clevelands are M-blocks, and the 429/460 are Big Blocks.
Senior User
Joined: Jun 2000
Posts: 458
Likes: 1
Differentiate 351W or C?
The easiest and quickest way, without breaking out any tools, is to lift the hood and look at the thermostat housing (where the top radiator hose goes to the motor). The Windsor engines (300, 302, and 351) have the housing on the VERTICAL FRONT, while the Cleveland engines (351C, 351M, and 400) have it on the HORIZONTAL TOP. And by the way, the Windsors are small blocks, the Clevelands are M-blocks, and the 429/460 are Big Blocks.
Yea, just as easy as looking which way the fuel pump bolts mount, right??? Or counting valve cover bolts???
Will disagree on your big block/M/small block ID, though. The M's are different than the Clevelands simply because of deck height and bell housing bolt pattern. So to to call Clevelands M blocks is incorrect. The reason I consider 302's, Windsors, Clevelands and M's small blocks is one simple reason: They all share the small block bore spacing and the head bolt pattern with each other. While the M's are physically NEAR a big block in size, so is a 4.6 DOHC, and at 281 inches nobody would EVER call that a big block!!!
If you want to call M's "modified Clevelands" I can see that, since the Cleveland was before the M. But to say the Cleveland is an M block doesn't make sense IMHO. But they all are small blocks to most because of the head interchangability.