you need a set of small block motor mount brackets and towers.... its basicly the same swap as it is on a 67-72..... not very hard
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68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350