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Message: <blockquote data-quote="71ProjectJunk" data-source="post: 406100" data-attributes="member: 7655">The intakes for the 351 Cleveland and the Boss 302 are completely different. They will physically not fit, but even if they did, the Boss 302 intake will have the water outlet on the actual intake, and the 351 Cleveland has no water outlet on the intake as the water outlet is on the block. The Boss 302 has a unique 302 Windsor 4 bolt main block, that was only available on the Boss 302. The 351 Cleveland block is completely different. The "Cleveland" heads were first seen on the Boss 302 engines in 1969, one year before they came out on the 351 Cleveland engines. A Boss 302 is basically a 302 Windsor block with big port closed chamber 4V Cleveland heads. The confusion on the OP's part comes from the fact that Ford of Australia came out with a 302 Cleveland engine in 1972. The Australian 302 Cleveland is unique to Australia, an was made out of an actual de-stroked 351 Cleveland. They use the 4.0 bore 351 Cleveland block with a unique 3.0" stroke crankshaft. They then used a unique set of long 6.025" rods to make it all work. The most special thing about the Australian 302 Cleveland engine is that Ford of Australia combined the high velocity 351 C 2V intake ports, with a closed chamber head that was somewhere in the 56-59cc size. Those heads had the smallest chambers ever on a Cleveland style head, USA Spec 351 closed chamber heads are somewhere in the 62-66 CC size. If I recall correctly they came with the same valve sizes as the 351 C 2V head that was used in the USA, but you could obviously open valve seats up all the way to the 351 C 4V valve sizes.The Australian 302 Cleveland head was a popular head to import into the USA in the late 80's and probably well into the early 2000's. I sold a couple of modified sets to a couple of customers in the early 90's from someone who was importing them from Australia in the late 80's-early 90's. Back then there were none of the aluminum heads we have today, and the closed chamber 302 Cleveland Australian heads, with some good sized valves, and properly ported, made an unbeatable street head. They would really wake up a low compression 351 C...</blockquote>

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