Hello everyone. There's an engine that I am interested in that is being sold as a 235, a 1966. The numbers are, 3921968, f11172cq. when I go to inliners the 3921968 says it's from an chev/olds 230-250. What is that? The other number, f11172cq doesn't have any referance. I am looking to upgrage the 216 in my 51 pickup with a full pressure 235. Do you guys think this is what I'm looking for. Thanx Tim