Thread: Bought 428, got a 390
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Old 07-27-2003, 10:09 PM
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bomelia bomelia is offline
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Join Date: Jul 2003
Location: Huntsville, AL, AL
Cobra Make, Engine: 90% of a 428 friggin SCJ Engine!
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Well, I am ready to settle on what believe has happened to this block. I base my opinion on the numerous e-mails and posts that have resulted from this and a couple of other threads. Thanks a bunch to you all!!

I have concluded that this is most likely a 428 block that was "pulled" for 390 duty. Due to the different foundries and customs at such places, stamping may be highly unreliable as a block ID... in other words, negative results do not prove anything, they just leave the case open. Scratch marks, cylinder bore, casting numbers, web supports, and cylinder thickness are some of the important clues. This block has current thicknesses that support the notion of a pulled block. The only real evidence that I have is the current cylinder wall thickness and the casting numbers (C6ME-) and I believe the "A" was ground off at the factory to reduce the confusion space to the 390 and 428 (they did leave the dash.)

This engine will be rebuilt as a std 428. No more, no less.

Mike
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