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kalirodding · 03-12-2011, 03:14 AM

If it's the original engine, most likely it's the 250. The 250 came out in 66 but running the numbers is the only way to be sure.

03-12-2011, 03:14 AM	#16
kalirodding CLASSIX Truck Club Join Date: Oct 2009 Location: Lodi Ca Posts: 318	Re: 66 longbed fleetside If it's the original engine, most likely it's the 250. The 250 came out in 66 but running the numbers is the only way to be sure.