Chevrolet offered the 5.3-liter V-8 Vortec 5300 engine as an option on the 2000 Silverado 1500 base and LS trim levels. It was standard equipment on the LT trim. The firing order for the Vortec 5300 in your Silverado is 1-8-7-2-6-5-4-3. The cylinders in bank No. 1, on the driver side of the engine, are 1, 3, 5, 7. The cylinders in bank No. 2, on the passenger side, are 2, 4, 6, 8.
Vortec 5300 Specs
The Vortec 5300 has a distributorless ignition system -- a separate ignition coil supplies spark to each cylinder. The powertrain control module controls ignition timing. In your Silverado, the Vortec 5300 produces 285 horsepower at 5,200 rpm and 325 foot-pounds of torque at 4,000 rpm.