Police Interceptor Heads?

Late 60's early 70's
Parts rep mostly but did both I was parts mgr before service manager left and I was pressed into that job at the dealer- I was in charge of body shop and paint, sold cars
family owned smaller dealer that's where we had the Birds and Challangers- what year was the oil crisis?
Several dealers had both AMC and MOPAR
I arranged a sale of Penske Javelins and 2 door Matadors to Hurst- damn not Hurst the Rental Company Hertz and I can't remember what the Matadors were- Cassini? some Italian designer most were 304 but some 6 cyl to 401
The Javelins were the later front end and Matadors I think 74's
Also 4 door Matadors to the US Forest service
401 with special suspensions wheels tires blue streaks? damn were they fast and handled great