A feature unique to the aluminum...
A feature unique to the aluminum version, these cross-valley ribs help the block resist bending, which helps keep the heads in place and avoids that devastating front-to-rear block split that's known to befall 302s.
So, if you thought slicing 100 pounds or more from your engine compartment was about as easy as turning down chili fries or mozzarella sticks at lunch, World Products has your diet plan-well, for your car, at least.
World's 10-Degree Heads
Recently released is a new cylinder head from World Products. It's a 10-degree head with a six-bolt-per-cylinder configuration designed for the company's Man o' War blocks. The six-bolt design increases the clamping power of the head bolts for a tighter, blow-proof seal when sending a lot of boost or nitrous through the engine.
And yes, this is a cylinder head designed for racing and suited to big-lift cams and sheetmetal intakes. The tight, 10-degree valve angle is optimized for the airflow capability generated by intake ports that measure up to 285 cc (275cc versions also are available). The heads come with 64cc combustion chambers, and assembled versions are offered with humongous 2.250-inch and 1.625-inch valves.

The thicker front bulkhead...

The thicker front bulkhead also contains an expanded water jacket. Because of this, World Products cautions against most gear- and belt-drive timing setups, as clearance for them may be a problem.

The block's lifter bores are...

The block's lifter bores are indexed and come in the standard Ford 0.8750-inch diameter. Some material may need to be trimmed from the end bar in order to use factory-type lifter tie bars with the spring-steel retainer.

Iron cylinder liners inserted...

Iron cylinder liners inserted in the aluminum block are notched for large-stroke applications. The liners can be bored to a maximum 4.155 inches, providing ultimate displacements of 376 cubic inches for 8.2-inch deck blocks and 460 inches for the 9.5-inch deck version.

World Products' 10-degree...

World Products' 10-degree heads are designed for serious, unimpeded flow, with raised ports and intake runners that measure up to 285 cc.

The raised-port design of...

The raised-port design of the head enables larger, high-flow custom headers, while the six-bolts-per-cylinder design delivers exceptional clamping strength.

The head is delivered with...

The head is delivered with a 64cc fast-burn-style chamber, with a deck thickness of 0.600 inch. Assembled versions come with large 2.250-inch and 1.625-inch valves.

Four-bolt, billet steel main...

Four-bolt, billet steel main caps are standard issue, with the three center caps featuring a splayed-bolt design that enhances strength. Depending on the main size, they use either 2.248-inch or 2.749-inch O.E.-style bearings.

On the outside, the aluminum...

On the outside, the aluminum Man o' War accepts all factory-type and aftermarket components and accessories, and the features such as the motor mount holes and starter pad are all in the original location. Fitting the oil pan, however, may require some installer-dispensed adjustment because of the splayed main caps.

The Man o' War is designed...

The Man o' War is designed for priority-main oiling, as well as a factory-style internal oil pump. However, the block has provisions for a racing-type dry-sump oiling system.

Besides its color, which can...

Besides its color, which can be hidden with engine paint, the telltale external giveaway to the block's aluminum casting is anodized aluminum, screw-in type plugs.