All 64 car blocks had chrome valve covers, this may be a truck block? All truck blocks and 348 car and truck blocks had orange valve covers (not sure what Cdn Pontiacs had for colours in all years). You'd need to look closely at the numbers on this setup, dates and castings, to know what it was made from. To get 425 HP from a truck block, you have to use the right internals and the heads have to be the right setup. Like those old Offie valve covers and $8,000 for a well built dynoed 425HP 409 is not a bad price.
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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC. 1963- Pontiac top selling car in Canada
Mahone Bay, NS Still not old enough to need an automatic