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Vortec 454 Injectors

I just put new injectors in mine from fiveomotorsports.com. Bosch. I wouldn't go with cheap injectors. Direct replacement, doesn't require a tune. Although I have it tuned with an old Hypertech 3 tuner. Improved trans shift points and firmness. Also got rid of the fuel shutoff and dropped the...
- TJ400
- Post #56
- Mar 13, 2024
- Forum: Engine Performance + Maintenance
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Power steering fluid suggestion

Interesting reading. I know the new systems are different than from the 80s. But I was a mechanic on a fleet to 10 1 tons licensed for 16 K. We always used Trans fluid. Truck ran about 50K a year never had an issue.
- TJ400
- Post #10
- Nov 21, 2023
- Forum: Engine Performance + Maintenance
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Vortec 454 Fan Upgrade

I pull 8400 pounds of trailer with my 98 Silverado. 454 with 3.73 gears. From new I didn't like the engine temps past 200 degrees pulling hills. I bough a Hypertec 3 programmer. Put a 180 degree thermostat. Changed the shift points and firmness on the trans. Cut the computer controlled electric...
- TJ400
- Post #14
- Oct 25, 2023
- Forum: 96+ Vortec Performance + Computer Swaps