Chrysler was supposed to have built 50 of each to satisfy the NHRA rules but some say as little as 32 cars were built, the others being just numbers (with no actual cars assembled).
The Hemi motor used blocks designated as A-blocks, as they had the closest tolerances. Forged pistons were good for 7400 rpm. Induction relied on a Vanke intake manifold which looked stock on the outside.
Unlike the earlier Super Stock packages that were farmed out, Chrysler put together the WO’s on their own production line. Other ingredients in the package included radio/heater delete. Prestolite transistor ignition mounted under the dash against the firewall, special distributor and coil, racing plug wires, the first application of Super Stock rear springs, trunk mounded big Super Stock Battery, no undercoating or sound deadener and lighter weight carpet. Though not advertised, the metal body components were acid dipped to reduce weight. (Chrysler called this “chemical engineering”). The cars had 10” drums up front for reduced weight and better rolling resistance. Standard Street Hemi had 11 inchers up front and 11 inch rear drums. The race cars used a standard clutch fan, but with aluminum blades.
The WO’s came through with a functional ram air hood. Chrysler took a stock hood, lightened it, and cut out a large round opening underneath. They supplied a plate that bolted around the opening to center and sealed it to the bell shaped velocity stack. The plate and stack came in the trunk along with a set of Hooker Headers that were packed in a Hooker Header box. Automatic cars came through with a special TorqueFlite that had to be shifted manually through its reverse shift pattern. The 8-3/4 rear-end was packed with the Sure-Grip 4:88 gears.
https://www.supercars.net/blog/1967-dodge-hemi-coronet-super-stock/
https://www.legendarymotorcar.com/inventory/1967-dodge-coronet-super-stock-1644.aspx
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