Not Ranked
428 block
on page 82 - 83 of "High Performance Ford Engine Parts Interchange" it says
Ford warmed up the 428 with nothing more than off-the -shelf Police Interceptor and 390 GT parts to achieve the legendary Cobra Jet engine of 1968. The 428-4V Cobra Jet engine was available in two basic versions with and without ram-air ---the Cobra Jet (1969-70). Horse power ratings were the same for both. Where the two differ was in the bottom end refinements with the Super Cobra Jet. The Super Cobra Jet employed cap-screw connecting rods. forged pistons, a small counterweight on the crank forward of the timing cover, and an electronically balanced and modified crankshaft. These features improved reliability under severe conditions. Otherwise, the CJ and SCJ were virtually the same.
also in the same book on page 94 it list C6ME, C6ME-A as 1966-68 blocks. C6AE-A as 1966-67 block. C6AE-B and C6AE-F as 1966 Police Intercepter blocks.
hope this helps.
post the full casing number and maybe we can pin it down a little better.
Dwight
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life's goal should be; "to be smarter than inanimate objects"
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