427 / 428 Blocks are not made of nodular iron

In fact the 428 CJ blocks are made from the same superior iron alloy that Ford used for its 240 CI 6 cylinder and its 302 - 2V that year.

There was no special block alloy for anything except the 427 block.

There was no special iron for crankshaft castings for any engine size. Ford used a crankshaft grade nodular iron formula which is NOT the same formula as the nodular iron formula that Ford used for axle cases or engine block main caps.



1912 Model T Ford touring Salmon (ugh!)
1913 Model T Ford Touring original Black paint
1915 Model T Ford Roadster Black
1915 Model T Ford touring Black of course!
1967 Cougar GT 390 Cardinal Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
http://www.supermotors.net/vehicles/registry/15029/50071-2