You are fortunate to have a 261 in your truck. Finish getting it cleaned up inside with the oil flushes wash off the outside and paint er up.
Most 261 were Green not Grey as were the 216/235 engines. Alpine Green like on the early Detroit Diesel rattlers.


1 1955 Chev one ton. 261 engine

3 1962 Chev c-10 261 engine
4 1966 Plymouth VIP 5.7 GenIII Hemi
5 1966 Imperial Crown Coupe 440 engine