With the 1973 model year came lots of bad news in emissions regulation, safety standards and gas prices, but to true the Pontiac aficionado these problems were all over-shadowed by a single tidbit of good news from PMD: 1973 was the year of the Super Duty.
The 455SD was, arguably, the greatest Pontiac engine ever bolted together. The block has reinforced main bearing webs and 4-bolt mains. It used strong forged steel connecting rods that were held onto the heavy-duty nodular iron crank by 7/16-inch bolts. Pistons were TRW forged pieces, and the oiling system used a 80-lb. Spring in the high-volume pump, screw-in oil plugs in the block and had a provision for a dry-sump pump. The distributorís oil pump drive gear was oversized as well.
LocationBrooklyn, New York Mileage:10400 Engine: 8 Body Type: Coupe Interior: Oxblood Deluxe/Custom Vinyl Exterior: White
Place Date: 11/23/2015
5039 Ad Views
the advertiser about this 1973 Trans Am Advertisers phone