Completely rebuilt Pontiac 455 heads (4X casting, C223 date code, cleaned, magnafluxed, etc. ) all machine work complete and fully assembled, bronze guides, performance 3-angle valve cut, screw-in studs, new valves, springs, push rods, spark plugs, etc. Over $650 in machine work alone. Wrapped in plastic with dessicant since picked up from machine shop in late fall. Stored in temperature-controlled office. Better than it came out of the factory. $375. Tony (231) 937-4113 (see Grand Rapids, MI craigslist).
These heads would certainly be pump gas safe for a 400- you could easily and cheaply whack them down to meet your compression needs. The owner is wanting to sell these...
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