Holley Marine

Holley LS Chevy Valve Covers - Black

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the unsightly LS coils and messy wiring harness - allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features a simplified version of our Vintage Series style fins that seamlessly blends with other finned Holley dress-up accessories such as our LS valley covers and 14" round air cleaners. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness so no extensions or custom wiring is required.

Each 2-Piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, and 12-point dress up hardware and rubber grommets for the coil covers. These modular LS valve covers are now offered in 5 unique finishes: natural cast, polished, satin black, factory orange, and gloss red (black, factory orange and gloss red sets feature machined fins).

• Cast aluminum 2-Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies
• Retain the performance of factory coil-on-cover ignition without the unsightly styling
• Base fits LS1, LS2, LS3, LS6 and LS7 engines with clearance for .750” lift cam with stock style rocker arms
• Base features internally baffled ventilation system
• Coil cover features Holley vintage style fins and cast-in wiring provisions
• No coil relocation, wire harness extensions, or custom spark plug wires required
• Includes low-profile billet oil fill cap
• Includes all necessary coil mounting and dress-up hardware

Holley LS Chevy Valve Covers - Polished

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage style finned overcover that hides the unsightly LS coils and messy wiring harness - allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features a simplified version of our Vintage Series style fins that seamlessly blends with other finned Holley dress-up accessories such as our LS valley covers and 14" round air cleaners. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness so no extensions or custom wiring is required.

Each 2-Piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, and 12-point dress up hardware and rubber grommets for the coil covers. These modular LS valve covers are now offered in 5 unique finishes: natural cast, polished, satin black, factory orange, and gloss red (black, factory orange and gloss red sets feature machined fins).

• Cast aluminum 2-Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies
• Retain the performance of factory coil-on-cover ignition without the unsightly styling
• Base fits LS1, LS2, LS3, LS6 and LS7 engines with clearance for .750” lift cam with stock style rocker arms
• Base features internally baffled ventilation system
• Coil cover features Holley vintage style fins and cast-in wiring provisions
• No coil relocation, wire harness extensions, or custom spark plug wires required
• Includes low-profile billet oil fill cap
• Includes all necessary coil mounting and dress-up hardware

Holley LS Hi-Ram EFI Manifold

• Runner Length – 6.29”, As-Cast Runner Cross-Sectional Area – Tapered 4.67in² to 2.84 in²
• Throttle Body Flange Location, with 92/102mm EFI Plenum Top : Height – 8.42” (from engine block lifter valley cover flange), Longitudinal Location – 3.84” (forward from engine block front flange), Angle – 25 deg. (down from vertical)
• Plenum Top Gasket Type – 3/32” Round O-ring Cord
• Mounting Flange Gasket Type – Standard LS3 Molded O-Ring
• Port Size – 2.49” Height x 1.21” Wide
• Total Height with 92/102mm EFI Plenum Top – 12.32” to the lifter valley cover flange on engine block.
• Base Plenum Top Mounting Flange Height – 8.42” to the lifter valley cover flange on engine block.

Holley Red Pump 97 GPH Free Flowing Factory Pressure Pre-set at 7 PSI

The Holley fuel pumps meet USCG requirements and are a great reliable fuel supply for any marine engine. Each pump includes a mounting bracket and fuel/fume vent tube. These pumps weigh less than 3 pounds and come with 3/8" NPT inlet and outlet provisions.

Holley Sniper EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Holley just brought EFI within range! Introducing Sniper EFI! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!

• Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
• Throttle body mounted ECU – no extra boxes to mount
• Supports up to 650hp with Four 100 Lb/Hr Injectors!
• Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
• Integrated ignition timing control & coil driver
• 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!
• Available in base & master kits (Master kits include complete fuel system consisting of; 20ft of 3/8" Vapor Guard Fuel Hose, 12-920 Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!)
• The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
• OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
• Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
• Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
• A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
• Patent Pending

Holley Sniper EFI Self-Tuning Master Kit - Shiny, Black Ceramic or Classic Gold

Holley just brought EFI within range – introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. The Sniper EFI master kit contains the most complete EFI fuel system on the market. Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!

• Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
• Throttle body mounted ECU – no extra boxes to mount
• Supports up to 650hp with Four 100 Lb/Hr Injectors!
• Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
• Includes complete fuel system consisting of; 20ft of 3/8” Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
• Integrated ignition timing control & coil driver
• 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 Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
• OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
• Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
• Patent Pending

Holley Super Sniper 1250 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI?Look no further than Holley for the Super Sniper 4150 EFI systems featuring 8, 100LB/HR Fuel Injectors capable of supporting up to 1250 HP on forced induction or dry nitrous applications. Is your combination not producing that much horsepower? No problem, Holley also offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

• 1250 HP version features eight 100 Lb/Hr Injectors (Forced Induction)
• The 800 CFM Main Body will support 700 Horsepower Naturally Aspirated
• Compatible with Draw thru or blow thru forced induction applications
• Built-in Single stage progressive nitrous control
• Programmable inputs and outputs
• Integrated ignition timing control for precise timing curves
• Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
• Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
• 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!
• The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
• OEM Style TPS/IAC and fuel pressure regulator, for years of dependable service
• Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
• Throttle body mounted ECU – no extra boxes to mount
• USB to CAN Communication cable included for easy laptop tuning of advanced controls
• Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
• Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
• A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
• Compatible with Holley EFI analog gauges and electronic dashes
• Patent Pending

Holley Super Sniper 650 EFI Self-Tuning Kit - Shiny, Black Ceramic or Classic Gold

Introducing Holley Super Sniper EFI! Looking to convert your blow thru carbureted turbo engine to EFI? Look no further. Holley offers a 650 HP four injector version for lower horsepower applications with a power adder or someone just needing additional sensor inputs. Did we mention the Super Sniper also has full nitrous control built-in? That's right, no need for a separate nitrous controller! Every Super Sniper EFI system also comes with a USB to CAN tuning cable, as well as free downloadable Sniper EFI Software to give you unlimited control of your engine.

• 650 HP version features four 100 Lb/Hr Injectors
• Compatible with Draw-Thru or Blow-Thru forced induction applications
• User-friendly Boost Control with handheld adjustability
• Programmable Target Air Fuel Ratios per Boost level
• Advanced boost control is available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time – Same popular boost control offered in Holley HP and Dominator EFI systems!
• 2.5 Bar MAP sensor included which safely works on applications up to 21.5 PSI
• Built-in Single stage progressive nitrous control
• Dry or Wet Nitrous Support
• Progressive or Non-Progressive control strategies
• Lean/Rich AFR Cutoff
• Time or RPM based Timing Retard and much more!
• Integrated ignition timing control for precise timing curves
• 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
• Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI) for N/A or Nitrous applications
• Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
• Only 4 Wiring Connections Required! (Battery +, Battery-, Switched Ignition & RPM)
• 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!
• The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
• OEM Style TPS/IAC and fuel pressure regulator, for years of dependable service
• Included clamp-on oxygen sensor kit ensures a leak-free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
• Throttle body mounted ECU – no extra boxes to mount
• USB to CAN Communication cable included for easy laptop tuning of advanced controls
• Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 recommended)
• Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
• A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
• Compatible with Holley EFI analog gauges and electronic dashes
• Patent Pending

Idle Mixture Screw Gasket

Idle Mixture Screw Replacement Cork Gasket (10 per Package)

Inlet Needle – Viton

Inlet Needle Viton® Tip Adjustable 0.110” Seat Size

Marine Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers R50469, R50469-1, R80319-1, R80383, R80383-1 and R80456-1

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers
• -R4473
• -R6151
• -R6152
• -R6407
• -R80551

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers R9393, R9394, R9399, R9399-1, R50405, R50405-1, R50418, R50462, R50462-1, R50468, R50468-1, R80262, R80264, R80364 This Kit contains a 5.0 Power Valve – Your application may vary.

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers R50419, R50419-1, R50419-2, R50463, R50463-1, R80265, R80315, R80315-1, R80403, R80403-1, R80473, R80473-1 and R80492 This Kit contains a 5.0 Power Valve – Your application may vary.

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers R7128, R7129, R7163, R8159, R9392, R50464, R50470 and R80318-1

Marine Renew Kit

Renew Kit original equipment marine rebuild kits are available for all Holley marine carburetors. Each kit contains all parts and gaskets that are necessary to restore "like new" performance to your marine carburetor. Detailed instructions are included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit. It's your guarantee for trouble-free cruising.

Kit is for list numbers 17080560, 1708561, 17080563, 17080564, 17080565, 17084516, 17085013 This Kit contains a 5.0 Power Valve – Your application may vary.

MerCruiser Cable To Holley/Edelbrock/Quick fuel Carburetor Conversion Kit

This linkage adapter kit is used when converting from an original equipmentcarburetor. This kit provides the necessary components to allow you toattach factory style MerCruiser cables to any plate style mounting.

Metal Choke Plate

Metal Choke Shaft

Choke Plate (4150 and 4160)