Value of 428cj vs 427

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#1 (permalink)

09-28-2014, 09:12 PM

cobranc

CC Member

Join Date: Aug 2014

Cobra Make, Engine:

Posts: 13

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Value of 428cj vs 427

I recently purchased a 65 cobra replica with what I thought was a 427. After educating myself(does not have cross bolted mains bearing caps) I had some doubts so I pulled the oil pan. The crankshaft has a casting number of 1U and the block has reinforced main bearing webbing. This leads me to believe the engine is a 428CJ. I bore scoped the top of the pistons and have found that they are .030 over pistons.
Other info on engine: date code on engine is oct 15, 1968. No engne Casting number, push in freeze plugs, aftermarket cam(no idea of specs but sounds nice), forged pistons. That is all I know so far.

My question is: which engine is more valuable 427 or 428CJ?

Thanks for the help.

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