How do I know what 351 motor I have?

How can you tell the difference between a 351W and a 351M?

351M engines use the bellhousing bolt pattern of the 385-series Ford big blocks. Due to a higher deck, the 351M’s intake manifold is wider than a 351C. Motor Mounts. 351 Cleveland mounts use two bolts to attach to the engine, whereas the Modified uses three.

How do I tell what year my 351W is?

The 351W casting number is located on the right side of the block, about halfway down, facing downwards. The code will be a combination of letters and numbers — for example, “E3AE.” In this code, the E represents the decade number and the 3 represents the year. This engine was manufactured in 1983.

How do I identify my Ford Motor?

Locate the ID tag under coil attaching bolts for six-cylinder and some eight-cylinder engines. The tag is a series of numbers and letters etched in and used to decipher the year, make, and model of you engine. It is found underneath the bolts on the left or right side of the engine, near the front of the car.

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Is 302 better than 351W?

So for equal money, a 351 will have more cubes, more low end torque, and a lower RPM peak. A 302 will have the same HP, but a slightly higher tq peak with lower tq numbers. In almost any situation, cubes are better.

What does 351 4V mean?

4v = four valves (per cylinder) “Venturi” is UPPERcase and “valve” is LOWERcase.

How do I identify 351W heads?

Look at the rocker arm. If you have a conventional rocker arm with a machined slot in the head for a push rod, you have a 221 or a 260 head. If the head has a bolt down sled fulcrum, with a large hole drilled for the pushrod, then it is a post-’77 255, 302, 351W head.

How do you identify a Cobra 429 engine?

The factory 429 CJ/SCJ engine will have ALL of the following casting numbers: Cylinder heads: D0OE-R. This number is located on the OUTSIDE of the head, along the valve cover mounting rail and between the 3rd and 4th exhaust ports. Any other casting number is NOT a Cobra Jet head of any kind.

What year is the best 351 Windsor?

From what I have read, the best year for 351W blocks are 1969, 70, and 71. For some reason these were the strongest 351W ever produced, but very hard to find.

Are 302 and 351 heads the same?

The 351W heads are the exact same size as 302/289 heads, just have bigger valves and combustion chamber. 302 intake/exhaust manifolds will still fit fine.

What’s better 351W or 351C?

“The 351W is a basic 302-type engine. The 351C engine got all the hype, but what we race today is the basic W or a combination of the two. The W is a better engine for long-lived low RPM power. It needs proper preparation to race, and, as it has the better torque curve on the low end, it is not a high rpm engine.

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How much horsepower is in a 351 Windsor?

Ford 351W V-8 Specs

Engine: Ford 351W V-8 (5.8L)
Peak Horsepower: • 1969 – 250 hp w/ 2 barrel carburetor, 300 hp @ 5,400 rpm w/ 4 barrel carburetor • 1972 (net power ratings adopted) – 153 hp w/ 2 barrel, 161 hp w/ 4 barrel • 1997 – 205 hp (CA version), 210 hp @ 3,600 rpm • Ford Lightning – 240 hp @ 4,200 rpm

How do you read a Ford serial number?

How to Decode a Ford VIN?

  1. 1 = Country of manufacture (United States)
  2. F = Manufacturer (Ford)
  3. D = Vehicle Type (Incomplete Vehicle)
  4. X = Restraint Type.
  5. F46 = Model (Ford F-Series, F-450, Regular Cab, 2WD)
  6. S = Engine Type (6.8 SOHC SEFI V10; Gasoline 275HP)
  7. 1 = Security Code.
  8. 2 = Model Year (2002)


How do I know what engine I have?

Your VIN number is your vehicle identification number and you can find your engine size by VIN number. In the series of numbers and letters, the tenth from the left denotes the model year and the eighth is the engine codes. Just tell the store clerk those two characters and you’re in business.

How do you read engine serial numbers?

Your serial number is located on your engine plate, often located on the left-hand side of the engine. Typically the first letters and numbers will identify the engine, for example, DJ51279, to find all the parts we have online for your engine.

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