996-2000 GMC 7.4L V8 Big Block Bosch/SouthBay Fuel Injectors - Set of 8
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.Restore the power and efficiency of your GMC 7.4L Big Block with this set of precision SouthBay Fuel Injectors. Specifically engineered for the 1996-2000 454ci V8, these injectors provide a modern upgrade over the factory units, offering improved fuel atomization, smoother idling, and more reliable throttle response. Each set is flow-matched in-house to ensure your heavy-duty engine
Is your 7.4L GMC struggling with a rough idle, poor fuel economy, or a loss of towing power? The SouthBay SKU 1251 series fuel injectors are the perfect solution for the legendary 454 V8. These injectors utilize modern core technology, which features a vastly superior internal design compared to the original 1990s factory injectors.
Performance Features:
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Modern Bosch Technology: Upgrades your fuel system with a more reliable, 4-hole nozzle design (where applicable) for superior fuel vaporization.
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Matched Flow Precision: Each set is flow-matched within 1% variance, ensuring identical fuel delivery across all 8 cylinders to prevent hot spots and engine wear.
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Enhanced Atomization: Advanced spray patterns lead to more efficient combustion, which can result in better fuel economy and reduced emissions.
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Direct Fitment: Designed as a true "plug-and-play" replacement for the factory GMC 7.4L fuel rail and harness—no modifications required.
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Quality Assured: Each injector is hand-tested in the USA to meet or exceed OE specifications for heavy-duty truck and SUV applications.
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Fitment
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Make: GMC / Chevrolet
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Models: Sierra 2500/3500, Suburban 2500, Yukon XL 2500, P3500 Chassis
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Engine: 7.4L (454ci) V8 Vortec
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Years: 1996, 1997, 1998, 1999, 2000
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Note: This is a direct replacement for the original 19lb or 24lb units (depending on specific VIN application). No tuning is generally required for these stock-replacement upgrades.
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