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These heads came off of a running engine with lower end issues. It ran smooth and did not smoke. They are just the basic peanut port heads for a MarkIV block. $100 picked up in Madison County Ohio.
Lol, yeah they certainly aren't anything special. Just figured I'd offer them up in case anyone was trying to put together a dirt cheap 454 for a daily driver rig.
Yeah, those tiny ports and valves are good to about 4000 rpm....but the velocity is probably high as sh!t..
They are good for low end grunt..
but they ain't going to win any drag races....
I have a 454 on the engine stand that the reworked heads belong to,, but I keep looking at a good set of aluminum heads, and can't force myself to put the boat anchors back on.... I'll probably end up selling them for what the valve job and rebuild cost me...all new valves, springs, guides, seals, retainers and locks.. hot tanked, bead blasted, painted, and surfaced....
Someone must need these boat anchors... er, I mean, fine specimens of the cylinder head variety. Lol.
Seriously though, if someone is patching together a nice driver with a tired top end, I still have these. They have been stored indoors, in a heated room.
I think they get a bad rap because of the 80's smog motors they were used on. They seem to respond well to a carb, intake, headers and timing. Even with a stock, tiny cam.