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Originally Posted by BIGDOGTRUCKER
My "70 C10 has the correct engine I checked the suffix codes.Engine is black and looks to be untouched?Did they ever paint them this color or were they all orange?
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They were all orange (1970 SB). The engines were painted at the engine assembly plant, then shipped to the vehicle assembly plant. If there's no orange on the motor anywhere then it was most likely hot tanked and repainted during a rebuild. If the block was decked, the machinist either left the engine ID code intact, or re stamped it. Any chance of a pic of the engine ID stamp?