Cylinder Heads – Ford Panther Chassis

1979

302/5.0L                     

Head Casting: D8OE-AB

Intake Valve Diameter: 1.791in

Exhaust Valve Diameter: 1.460in

Combustion Chamber Size: 67.5cc

Rocker Arm Ratio: 1.61         

351W/5.8L

Head Casting: D9AE-BB or D9TE-SA 

Intake Valve Diameter: 1.782in

Exhaust Valve Diameter: 1.451in

Combustion Chamber Size: 67.5cc

            Rocker Arm Ratio: 1.58         

1980 + 1982

255/4.2L

Head Casting: E0SE-FC

Intake Valve Diameter: 1.68in

Exhaust Valve Diameter: 1.450in

Combustion Chamber Size: 53.5cc

            Rocker Arm Ratio: 1.61

1980-1984

302/5.0L                     

Head Casting: D8OE-AB

Intake Valve Diameter: 1.78in

Exhaust Valve Diameter: 1.450in

Combustion Chamber Size: 67.5cc

Rocker Arm Ratio: 1.61         

1980-1982

351W/5.8L

Head Casting: D8OE-CB 

Intake Valve Diameter: 1.78in

Exhaust Valve Diameter: 1.45in

Combustion Chamber Size: 67.5cc

            Rocker Arm Ratio: 1.61         

1981

255/4.2L

Head Casting: E0SE-AB

Intake Valve Diameter: 1.68in

Exhaust Valve Diameter: 1.450in

Combustion Chamber Size: 53.5cc

            Rocker Arm Ratio: 1.61

1985

302/5.0L

Head Casting: E5AE-CA

Intake Valve Diameter: 1.78in

Exhaust Valve Diameter: 1.45in

Combustion Chamber Size: 67.5cc

            Rocker Arm Ratio: 1.60

1986

302/5.0L

Head Casting: E6SE-AA

Intake Valve Diameter: 1.782in

Exhaust Valve Diameter: 1.451in

Combustion Chamber Size: 67.5cc

            Rocker Arm Ratio: 1.65

After 1987, the only information listed is for HO models.

Camshaft Data (All figures listed at valve)

1979-1982

302/5.0L

            Intake Lift: .382

            Exhaust Lift: .398

1979-1982

351W/5.8

            Intake Lift: .419

            Exhaust Lift: .419

1980-1982

255/4.2L

            Intake Lift: .381

            Exhaust Lift: .381

After 1982, only information for the 5.0L HO is listed.

Source: http://www.nhra.com/tech%5Fspecs/engine/