1966 Dodge D/Dart ~ 'Mystery, Myth and Misconception'

Neech,

There was always some mystery about the 1960 Pontiac Catalina 'SD-389' cars.

What came from the 'factory', and what was 'dealer installed'.

The 1960 'SD-389' was 'suspiciously' rated at 363 HP with the Carter AFB.

1960 Pontiac Catalina 'Hardtop'........... Shipping Weight... #3850 lbs.
'SD-389' 363 Horsepower

A Perfect .......... #3850 lbs. ~ 363 HP = 10.60 Wt/HP

Specifications;
* 4-Bolt Main Block {#536387}
* Forged Steel Crankshaft {#533038}
* Heavier Connecting Rods
* Specially Lightened Pistons {10.75-1 Compression Ratio}

* McKellar #7 Camshaft 'Mechanical' {#535480} > {.447"/.446" Lift ~ 300*/304* Duration ~ 113.5* LSA ~ 75* Overlap}
* 1.65-1 Ratio Specific Rocker Arms

* Special Casting Cylinder Heads {#535461} > 1.92" Intake ~ 1.60" Exhaust
Note; A Casting Code 'X' was located to the left of the center Cylinder Head Bolt, indicating these 'special' Heads.

* Special High Load-Rate Valve Springs
Note; A Casting Code 'O' was located to the right of the center Cylinder Head Bolt, indicating 'special' Valve Springs.

* Carter AFB #3010 {625 CFM}
* Aluminum Dual-Plane Intake Manifold {#535889}
* Special Free-Flowing Exhaust Manifolds
* 12" Heavy-Duty Pressure Plate
* 11.875" Clutch Disc

This 'option' was available in January 1960.

Also, the Borg-Warner T-10 {M-20} Wide-Ratio 4-Speed Transmission was made available for an additional cost of $306.
{Racer Cost; $234}

A 'Hurst Shifter' was installed by the Dealer.