2V heads with just a cam, intake & carb will not net you 400hp. You must be in the same dream world as them nutswinger GM LS guys.
Go ahead and bolt on a Cleveland timing chain & cover and water pump to that Boss block in the Ford racing catalog, oops they dont fit

wrong block but all the Windsor things will fit

. Yes it does have Cleveland sized mains but that dont make it a Cleveland and go ahead and bolt on a set of Cleveland heads on it and run them that still dont make it a Cleveland and to top it off the engine would leak water and over heat why? Becuse its
NOT A CLEVELAND with water ports in the block to feed the water to the T-stat. It feed water thru the intake becuse its a Windsor design block. Remember Clevelands use a dry intake and Windsors use a wet intake or did you forget that???

The only thing that that 351 Boss block has in common with a Cleveland is, you could get it in a Cleveland deck height (and Windsor to) and Cleveland sized mains. The Cleveland crank will fit in the block but that is about it as it would take some machining to be able to run it as its a Windsor block. Alot of cranks made for the stroker 351w are cut for the Chevy 2.100 rods does that make them a chevy crank?

NOT!!! The fact is the windsor block is superior design over the Cleveland block and that is why it continues to be cast and used in all forms of modern racing. The american Cleveland heads were and are junk and that is why so many people want the Aussi heads or they just go for the superior redesigned aftermarket Cleveland style heads

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