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Ford Racing Catalogue Web

ENGINE HISTORY SMALL BLOCK V8 (CONTINUED) 289/302/351W Water Passage 351C/351M/400 351C (CLEVELAND) The 351C entered the scene in 1970 and was WINDSOR VS. CLEVELAND FORD RACING 302/351 pro duced until 1974. It has canted valves with WATER PASSAGES “FORD RACING” ENGINE BLOCKS multi-groove keepers, hydraulic cam and 289/302/351W engines use a front cover, Ford Racing has designed several “Ford Racing” pedestal-mounted rocker arms with “sled” and water exits the intake manifold face of the blocks for maximum performance competition. fulcrum seats that are re tained with cap bolts. cylinder head through the intake manifold to They’re designed for small block engine builders Heads for 2V induction have open chambers radiator. 351C/351M/400 engines do not use who want to use existing 302/351C or 351W with rounded ports, while 4V heads have a front cover. The block is extended and covered components. 302/351 Ford Racing engines “quench” combustion chambers with larger with a flat stamping. Water exits the combustion constructed with Ford Racing block and rounded intake and exhaust ports. A 351C Cobra face of the head and into the block, and then Ford Racing cylinder heads are not available Jet appeared in 1971 with 4-bolt main caps, to the radiator. Windsor and Cleveland heads as com plete assemblies. which was carried over in 1972 as the 351C-4V physically interchange, but some modification When ordering parts, consider these key points: with open chamber heads. is required to accommodate the differences • 302 Ford Racing Block (M-6010-R302)—can 351C BOSS for details. BOSS applications.be used with all 289/302/302in water passages. See page 82 and above The 351C BOSS also appeared in 1971. It had 4-bolt main caps and the 4V-type quench FORD RACING 302/351 • 351 Ford Racing Blocks (M-6010-E351 chamber head with pedestals machined to FORD RACING WATER PASSAGES production 351W applications, except thosethru M-6010-W351)—can be used with all accept a 302 BOSS-type valve train and Several different water passage hole patterns relating to crank shaft main bearing diameter. mechanical cam. The con rod featured a have been used on 302 Ford Racing and The 351 Ford Racing block is machined for 180,000 psi .375" bolt. In 1972, open chamber 351 Ford Racing cylinder blocks and heads the smaller 351C-type bearings. Ford Racing heads were used with a flat-top piston, and the since their introduction. Engine assemblers crankshafts feature the smaller 351C main name changed to 351C HO. should lay the head gasket on the block and journals that are compatible with these blocks. the cylinder head (with front of the gasket The block is available in two deck heights 351M (MODIFIED) AND 400 toward the front of the engine) to make sure (9.500" and 9.200"), so either Windsor or The 351M and 400 are similar in design there is a path for coolant flow from the block Cleveland components can be used topside. to the 351C, but there are subtle differences. into the head. In some cases, holes may have to Requires 289/302/351W-type cam shaft. Both the 351M and 400 blocks are 1.100" be drilled in the block or head, or punched in the • If 302/351 Ford Racing heads are used on taller and have larg er main journal diameters. 302/351 Ford Racing blocks, the Ford Racing- Engine mounts are unique. Bellhousing pattern gaskets are listed on page 131. type intake manifolds are required.gasket. Current Ford Racing cylinder head is the 429/460 design. For important information about the proper usage of performance parts, please see page 14. 86 Techline (800) FORD788 See pages 286-292 for important safety, emissions and warranty information.


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