Dart, World Products and Ford Racing all sell WINDSOR blocks in alloy. If a 100% Windsor or a Clevor is your bag, then that's a good way to proceed.
The one difference you'll notice, with it's 9.2" deck height, the Clevo is limited to a 4.00" stroke. The Windsor is available in either 9.2" OR 9.5" decks, that extra 0.3" of deck allows the Windsor to fit a crankshaft with a longer stroke, up to 4.25".
However, when installing a non-Cleveland motor in a Pantera, you have to ask what exhaust systems are available. In this case, a 460 cubic inch CHI headed Clevor has no off the shelf exhaust systems available for installing it in a Pantera. All of the exhausts available for 9.5" deck motors are designed for Windsor style heads. Exhausts designed for Cleveland heads are designed for 9.2" deck blocks.
I hope that clears up some of the issues involved.
cowboy from hell
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