I have a 4 barrel intake with a casting number of 587503 and a D1 on it. I was told it came off a 64 Jetstar 1. Does anyone know for sure?

Thank you,
Pat

 

Pat, both my 64 Starfires have 382856 intakes. The blue one (Linden NJ assembly) has a D6 and the green one (Lansing car) has a D3.

Since J-I's used Starfire engines, I'm gunna go out on a limb and say your intake did not come from a 1964 Starfire engine.