they came on cobras and lightnings as well as some boats. mine were from a 351 marine application.
the cobra heads im sure are 64cc combustion chambers and the lightnings are i think 65cc or so since they are a 351w motor... the lightning heads also come with 1/2" bolt holes compared to the mustangs 7/16".
hope this helps, it will be a real tough time trying to find them in a junkyard. i tried.
take care,
adam
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90 GT black/ grey leather
ported GT-40 heads w/ 1.7RR, Cobra intake w/ ported lower, 24# injectors, 190LPH pump, 75mm Pro-M MAF, 65mm TB, K&N panel, BBK long tubes, Off road H-pipe, 2 ch. Flowmaster, Black magic fan, Kirban FPR, 180 deg. T-stat, 3.73's, Steeda Tri-Ax, 130 amp alt. Accell 8.8 race wires/cap/rotor, motorcraft plugs, Factory Five suspension, etc etc etc....
http://avbcon12.stangnet.com
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