Image is a representation of this item. Actual item may vary.
Part Number:
HOL-550-877

550-877 HOLLEY SUPER SNIPER STEALTH 4150 - 1250HP - BLACK FINISH

4 Barrel Fuel Injection Conversion - Self-Tuning Kit + Handheld EFI Monitor - Black Finish

$2,249.95
View Similar Items
⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
The Super Sniper Stealth 4150 EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications.

Features:

  • Bolt on 4150 Flange Carburetor Replacement
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 1250hp with Eight 100 Lb/Hr Injectors!
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
  • Programmable inputs and outputs
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
  • Six Programmable Ground Outputs
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors
  • One Sensor Ground – Ground supply for 0-5v Sensors
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
  • Integrated ignition timing control
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • OEM Style TPS/IAC, for years of dependable service.
  • Available in 3 finishes: Shiny, Black and coming soon, Gold
  • Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
More Information
CNC Part Number HOL-550-877
Price $2,249.95
Manufacturer's Part Number 550-877
Brands Holley
Part Types Fuel Injection System
Departments Parts
Vehicle Make Universal
EFI System TBI Systems
Custom Notices ⚠ PROP 65 WARNING
Other Customers Also Bought
PART #: CP-XP5022 CP Pistons SC7516
XP5022 Pistons, Porsche 3.6 964/993 - 4.016 (102.00mm) Bore, 11.5:1
Special Price $1,376.52 Regular Price $1,546.65
PART #: WIS-K397X100 K397X100 Wiseco Pistons Forged 8.8:1 Dish 4.100 Bore - GM LS
K397X100 Wiseco Pistons Forged 8.8:1 Dish 4.100 Bore - GM LS
$1,142.99
PART #: ARP-200-3401 ARP-200-3401
ARP 7/16-14 Drive Plate Bolt Kit 200-3401
Special Price $31.98 Regular Price $34.95
PART #: UEM-IC946-020 Icon Pistons IC946-020 Fits Ford 2300 Flat Top 2.5cc Bore 3.800
Icon Pistons IC946-020 Fits Ford 2300 Flat Top 2.5cc Bore 3.800
Special Price $440.22 Regular Price $453.84
PART #: CAN-15-320BLK BB Chevy Mark IV Canton Drag Race Baffled Oil Pan 7QT 15-320BLK
BB Chevy Mark IV Canton Drag Race Baffled Oil Pan 7QT 15-320BLK
$569.00
PART #: CP-BCRSE1020-030 BCRSE1020-030 CP Bullet 23° Circle Track Forged Pistons - SB Chevy 357- 4.030 Bore
BCRSE1020-030 CP Pistons, Bullet 23° Circle Track Forged, SBC, 357, 4.030 Bore
Special Price $1,158.78 Regular Price $1,302.00
PART #: CLE-TW590S TW590S
TW590S Clevite Thrust Washer Set - Nissan SR20DE DOHC 1991-1998
$10.95
PART #: CLO-9-3601X3 9-3601X3
Cloyes 9-3601X3 Race Billet True Roller Timing Chain Kit - 3 Keyway
$175.95