Ford Racing Cylinder Head Gasket for 351W Ford Mustang Engines.

4.125 bore diameter. 4.160 gasket diameter. 0.040 compressed thickness and 9.1cc compressed volume.

4.125 overbore competition gasket. Same as gasket (M-6051-D331) except designed for Ford Racing blocks with larger 4.125 overbore. Bore flange valve pockets have been added to unshroud intake and exhaust valves.

Set includes unique right and left hand gaskets!

Several different water hole patterns have been used on 302 and 351W Ford Racing cylinder blocks and heads since their introduction. Engine assemblers should lay the head gasket on the block and the cylinder head (with front of gasket toward the front of the engine) to make sure there is a path for coolant flow from the block into the head. In some cases, holes may have to be drille in the block or head or punched in the gasket.

Not legal for sale or use on pollution-controlled motor vehicles.

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