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Holley Sniper 2 EFI Fuel Injection Upgrade Kits 550-511-3AX

Fuel Injection System, Sniper 2 from Sniper 1 Upgrade, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, No Pump, 3.5 in. Display, Kit

Part Number: SNE-550-511-3AX

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper EFI Stealth 4150 Fuel Injection Systems 550-872

Fuel Injection Systems, Sniper EFI, Stealth 4150, 650 HP Max, Throttle Body, Gold, 4150 Flange, Injectors, Wiring Harness, Tuner, Kit

Part Number: SNE-550-872

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper EFI Stealth 4150 Fuel Injection Systems 550-871K

Fuel Injection Systems, Sniper EFI, Stealth 4150, 650 HP Max, Throttle Body, Black, 4150 Flange, Injectors, Fuel Pump, Regulator, Harness, Tuner, Kit

Part Number: SNE-550-871K

3.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper EFI Stealth 4500 Fuel Injection Systems 550-842

Fuel Injection Systems, Sniper EFI, Stealth 4500, Throttle Body, Black, 4500 Flange, 1440 cfm, Fuel Injectors, Harness, Tuner, Kit

Part Number: SNE-550-842

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper EFI Stealth 4150 Fuel Injection Systems 550-870

Fuel Injection Systems, Sniper EFI, Stealth 4150, 650 HP Max, Throttle Body, Polished, 4150 Flange, Injectors, Wiring Harness, Tuner, Kit

Part Number: SNE-550-870

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley GM Gen V LT Retrofit Oil Pans 302-20

Oil Pan, Engine Swap, Aluminum, Natural, 6.1 Quarts, Retrofit, Chevrolet, Gen V LT Engines, Each

Part Number: HLY-302-20

4.63 out of 5 stars ( 30 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley EFI Dual-Sync Distributors 565-200

Distributors, Holley EFI, Dual-Sync, Hall Effect, Computer-controlled Advance, Male/HEI, Black Cap, Iron Gear, Polished Housing, Chevy, 4.3-7.4L, Each

Part Number: HLY-565-200

1.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems 550-511-BXX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, No Pump, Bluetooth, Kit

Part Number: SNE-550-511-BXX

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems with Power Distribution Module 550-510-3PX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, 3.5 in. Display, Kit

Part Number: SNE-550-510-3PX

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Inline Pump Fuel Injection Systems 550-511-5XK

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, 5 in. Display, Kit

Part Number: SNE-550-511-5XK

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Retrofit Engine Oil Pans for GM LS Engines 302-3BK

Oil Pans, Retrofit, LS Engine Swap, Rear Sump, Wet Style, 5.9 Quarts, Aluminum, Black, Buick, Chevy, Ford, GMC, Mercury, Oldsmobile,Pontiac, Each

Part Number: HLY-302-3BK

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley GM Gen V LT Retrofit Oil Pans 302-21

Oil Pan, Engine Swap, Aluminum, Natural, 6.1 Quarts, Retrofit, Chevrolet, Gen V LT Engines, Each

Part Number: HLY-302-21

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Retrofit Engine Oil Pans for GM LS Engines 302-5

Oil Pans, Retrofit, LS Engine Swap, Rear Sump, Wet Style, 5.6 Quarts, Aluminum, Natural, Buick, Chevy, Ford, GMC, Mercury, Oldsmobile, Pontiac, Each

Part Number: HLY-302-5

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper EFI Stealth 4150 Fuel Injection Systems 550-872K

Fuel Injection Systems, Sniper EFI, Stealth 4150, 650 HP Max, Throttle Body, Gold, 4150 Flange, Injectors, Fuel Pump, Regulator, Harness, Tuner, Kit

Part Number: SNE-550-872K

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Inline Pump Fuel Injection Systems with Power Distribution Module 550-511-5PK

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, PDM, 5 in. Display, Kit

Part Number: SNE-550-511-5PK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper OE Style 350 LPH EFI Fuel Pump Modules 12-329

Fuel Pumps, Sniper, In-tank, Retrofit, 12V, 92 gph, 5/16 in. Inlet, Hose Barb Outlet, Sending Unit, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: SNE-12-329

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI Fuel Injection Upgrade Kits 550-511-BAX

Fuel Injection System, Sniper 2 from Sniper 1 Upgrade, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, No Pump, Bluetooth, Kit

Part Number: SNE-550-511-BAX

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Inline Pump Fuel Injection Systems with Power Distribution Module 550-511-BPK

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Inline Pump, PDM, Bluetooth, Kit

Part Number: SNE-550-511-BPK

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems with Power Distribution Module 550-510-5PX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, PDM, 5 in. Display, Kit

Part Number: SNE-550-510-5PX

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems 550-510-5XX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, 5 in. Display, Kit

Part Number: SNE-550-510-5XX

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Return-Type Fuel Injection Systems 550-511-3XR

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Black, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, 3.5 in. Display, Kit

Part Number: SNE-550-511-3XR

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Base Fuel Injection Systems 550-510-BXX

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, No Pump, Bluetooth, Kit

Part Number: SNE-550-510-BXX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Return-Type Fuel Injection Systems 550-510-3XR

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Return Style Pump, 3.5 in. Display, Kit

Part Number: SNE-550-510-3XR

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley Sniper 2 EFI 650 HP Returnless Fuel Injection Systems 550-510-3XD

Fuel Injection System, Sniper 2, Self-Tuning, Throttle body, Polished, 4150 Flange, 650 hp Max, 800 CFM, Returnless Pump, 3.5 in. Display, Kit

Part Number: SNE-550-510-3XD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Holley G-Body Fuel System Kits 526-24

Fuel System Kits, G-Body Fuel System, EFI, 350 lph Pump, 40 ft. Nylon Braided Hose, Regulator, Filter, Buick, Oldsmobile, Chevy, Pontiac, Kit

Part Number: HLY-526-24

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

BUICK CENTURY Holley Parts and Accessories