GM 3919842 heads are they worth using?
i have a pair of 3919842 aluminum heads that im trying to determine wether or not i should use them on my build. i have been looking around to see if they are valuable. im building a 69 truck im considering using them on it but was thinking if i could sell and buy a good set of aftermarket heads that perform better i would, cause i dont really need these its just some i had. are they worth much? and how do they perform?
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