Are all 351W heads the same?

Are all 351W heads the same?

If you’re building a 351W, it’s important to know which head castings work best for your Windsor. The most desirable 351W head castings are C9OE-B, C9OE-D, D0OE-C, D0OE-G, and D0OE-C. All of them have the same 60.4-cc chamber and 1.840/1.540-inch intake/exhaust valves.

How do I know what size combustion chamber to get?

“Compression ratio is the driver of combustion chamber size,” Gamble said. “One needs to determine the chamber size needed based on the specs of the engine. Bore, stroke, head gasket, piston shape, deck clearance, and ring location all come into play in determining the compression ratio for a given chamber size.

What CC are stock 351W heads?

The best 351W head castings are C9OE-B, C9OE-D, D0OE-C, D0OE-G, D0OE-C, or the D5TE-EB truck head. All of these castings employ the same 60.4-cc chamber along with 1.84- to 1.54-inch valves. Beginning in 1978, the 351W chamber grew to 69 cc, resulting in lower compression.

Will 302 heads fit a 351?

For the most part 302 heads and 351W heads are the same. Different years can have different combustion chamber sizes but ffor the most part there will be no performance increases by going with 302 heads. Plus you will need to drill all the head bolt holes out as the 351W uses larger head bolts.

What degree are stock SBF heads?

SBF All American Small Block Ford 20 Degree Racing Cylinder Heads | Pro-Filer.

How can I tell if my Ford small block has heads?

Look for three different locations where your Ford cylinder head code number will be located: on top of the head under the valve cover; on the bottom of the head, requiring the head to be removed; and on the side of the head just under the valve cover lip.

Does bigger valves mean more power?

Power increases in proportion to air flow and air flow increases in proportion to valve area. The total area of two small valves should be greater than the area of a single larger valve which would result in more power (everything else being equal).

How much horsepower does a 5.8 351w have?

By 1997, fuel system improvements along with many other improvements resulted in peak horsepower of 210 at 3600 RPM, with 330 lb-ft of torque at 2600 RPM. The 351 Windsor, as one might guess, is 351 cubic inches, or 5.8L.

Are 302 and 351W 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.

Will GT40 heads work on 351W?

from Michigan. I had those heads on my car with standard length roller cam pushrods and I never had a problem… And they will work on the 351W also.. Just make sure you use ’78 and newer 351W pushrods to use with the GT-40 heads…

What are GT40P heads?

The Explorer/Mountaineer heads (GT40P) are somewhat smaller, measured between 58-61cc chamber volume. Thus, GT40P cylinder heads may give a small bump in compression.

How to choose the right 351W cylinder heads?

Another consideration in choosing the right 351W cylinder head is combustion chamber size. The 351W cylinder head received the same dimensions (port and valve size) as the 302 head in 1978. When you’re shopping for 351W cylinder heads, aim for 1969–1973 castings, which are the best heads for the 289/302.

When did 351 heads come out for 289?

The 351W cylinder head received the same dimensions (port and valve size) as the 302 head in 1978. When you’re shopping for 351W cylinder heads, aim for 1969–1973 castings, which are the best heads for the 289/302.

What does a Ford 351W engine look like?

At the beginning of 351W production in 1969, combustion chambers look like this, shaped like a shovel, with 18-mm tapered-seat spark plug holes. Chambers remained like this until 1975. We group these engines together because they’re basically the same engine architecture with the same cylinder head.

What kind of chamber does a Ford 351 have?

On the left is the 71- to 77-cc open chamber head casting for 1970–1974 351C-2V, 1972–1974 351C-4V, 1972 351C-4V High Output, 1975–1982 351M, and 1971–1978 400. On the right is the 1970–1974 61- to 64-cc 351C-4V wedge chamber.