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Cars
Air & Fuel Delivery
Air Cleaners, Flame Arrestors & Scoops
Air Cleaner Bottoms
Air Cleaner Studs
Air Cleaner Tops
Air Cleaners
Air Filter Assembly Adapters
Air Filter Assembly Vents
Air Filter Assembly Wingnuts & Fasteners
Air Flow Enhancers
Carburetor Scoops
Air Filter Elements & Accessories
Air Filter Elements
Air Intakes & Boxes
Idle Air Controls
Carburetors & Accessories
Carburetor Accelerator Pump Covers
Carburetor Adapters
Carburetor Base Plates
Carburetor Dust Covers
Carburetor Fasteners
Carburetor Floats
Carburetor Fuel Bowls
Carburetor Linkage Kits
Carburetor Main Bodies
Carburetor Metering Block Gaskets
Carburetor Metering Blocks, Replacement
Carburetor Needle and Seats
Carburetor Spacer Burst Panels
Carburetor Spacers
Carburetors
Choke Cables
Choke Kits
Throttle Cable Brackets
Throttle Cables
Throttle Return Spring and Bracket Kits
Throttle Return Spring Brackets
Fuel Cells & Tanks
Fuel Cell Caps
Fuel Cell Filler Valves
Fuel Cell Tip Over Valves
Fuel Cells
Fuel Tanks
Fuel Filters
Fuel Filter Elements, Replacement
Fuel Filter Replacement Parts
Fuel Filters
Fuel Injection
Fuel Injection Sensor Kits
Fuel Injection Systems
Fuel Injector Spacers
Fuel Injectors
Fuel Rail Components
Fuel Rails
Throttle Bodies
Throttle Body Adapters, EFI Manifold
Fuel Pumps & Regulators
Fuel Pressure Regulators
Fuel Pump Block-Off Plates
Fuel Pump Mounting Plates
Fuel Pump Mounts
Fuel Pump Pushrods
Fuel Pumps, Electric External
Fuel Pumps, Electric In-Tank
Fuel Pumps, Mechanical
Fuel System Pump Kits
Intake Manifolds
EGR Adapters
Intake Manifold Adapters
Intake Manifold Spacers
Intake Manifolds, Carbureted
Intake Manifolds, Fuel Injected
Intake Manifolds, Fuel Injected Components
Intake Manifolds, Supercharger
Throttle Body Intake Elbows
Nitrous Oxide
Nitrous Oxide Bottle Brackets
Nitrous Oxide Plates
Nitrous Oxide Safety Blow-Off Discs
Superchargers & Turbochargers
Pressure Relief Valves
Supercharger Drive Belts
Supercharger Fasteners
Supercharger Idler Brackets
Supercharger Mounting Brackets
Supercharger Nose Drive Assemblies
Supercharger Pulley Spacers
Supercharger Pulleys
Supercharger Top Plates
Superchargers, Centrifugal Style Head Units
Superchargers, Roots Style Components
Superchargers, Roots Style Kits
Supercharger Restraints
Engines & Components
Accessory Brackets & Eliminators
Air Conditioner Brackets
Alternator Bracket Components
Alternator Brackets
Power Steering Brackets
Bearings & Bearing Spacers
Cam Bearings
Main Bearings
Rod Bearings
Belts & Pulleys
Accessory Belts
Accessory Drive Systems
Alternator Pulleys
Crankshaft Pulleys
Idler Pulleys
Power Steering Pulleys
Pulley Adapters
Pulley Fasteners
Pulley Kits
Pulley Nose Cones
Pulley Spacers
Water Pump Pulleys
Camshafts & Valvetrain
Camshaft and Lifter Kits
Camshaft Bolts
Camshaft Locking Plates
Camshaft Thrust Buttons
Camshaft Thrust Plates
Camshafts
Cylinder Head Valvetrain Kits
Guideplates
Lash Caps
Lifters
Pushrods, Assembled
Rocker Arm Nuts
Rocker Arm Screws
Rocker Arm Shaft Shim Kits
Rocker Arm Stud Girdles
Rocker Arm Studs
Rocker Arms
Timing Belt Drive Replacement Parts
Timing Belt Drive Systems
Timing Chain and Gear Replacement Parts
Timing Chain and Gear Sets
Timing Cover Fasteners
Timing Covers
Timing Gear Drive Replacement Parts
Timing Gear Drive Sets
Timing Gears
Timing Pointers
Valve Locks
Valve Spring and Retainer Kits
Valve Spring Locators
Valve Spring Retainers
Valve Spring Shims
Valve Springs
Valves
Connecting Rods
Connecting Rod Bolts
Connecting Rods
Crankshafts
Crankshafts
Cylinder Heads
Cylinder Head Bushing Kits
Top End Kits
Cylinder Head Dowel Pins
Cylinder Head Fasteners
Cylinder Heads
Valve Guides
Valve Seats
Engine Assemblies
Crate Engines
Engine Blocks & Accessories
Engine Block Expansion Plugs
Engines, Bare Blocks
Main Cap Fasteners
Main Cap Girdles
Main Caps
Rear Main Seal Adapters
Engine Kits & Rotating Assemblies
Engine Rotating Kits
Short Block Engines
Harmonic Balancers
Harmonic Balancer Bolts
Harmonic Balancers
Timing Tape
Oiling Systems
Crankcase Evacuation Systems
Dipstick Handles
Engine Oil Dipsticks
Oil Filter Adapters
Oil Filter Covers
Oil Filter Mounts
Oil Filters
Oil Pan Fasteners
Oil Pans, Individual
Oil Pump Driveshafts
Oil Pump Pickups
Oil Pumps
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Pistons & Piston Rings
Piston and Ring Kits
Piston Oil Ring Spacers
Piston Rings
Pistons
Valve Covers & Dress-Up Kits
Engine Dress-Up Kit Combos
Valve Cover Baffles
Valve Cover Breathers
Valve Cover Fasteners
Valve Cover Grommets
Valve Cover Hold-Down Tabs
Valve Cover Oil Fill Caps
Valve Covers
Driveline and Systems
Differential & Rear-End Components
Axle Assemblies
Axle Drive Flanges
Axle Housing Braces
Axle Housing End Fasteners
Axle Housing Ends
Axle Housing Tubes
Axle Retainer Plates
Axle Shafts, Custom Built
Axle Shafts, Direct Fit
Axle Upgrade Combos
Differential Carrier Bearing Adjusting Nuts
Differential Carrier Bearings
Differential Carriers
Differential Covers
Differential Main Cap Fasteners
Differential Pinion Bearing Spacers and Sleeves
Differential Pinion Nuts
Differential Shims
Differential Spanners and Side Adjuster Tools
Differential Third Member Fasteners
Floating Axle Kits
Pinion Bearings and Races
Pinion Support Fasteners
Pinion Supports
Rear Axle Housings
Ring and Pinion Gears
Spools and Mini Spools
Third Member Case Only
Third Member Complete Assembly
Driveshafts, Drive Chains, Couplers & Yokes
U-Joint Fasteners
U-Joints
Yoke Adapters
Yokes
Shifters
Automatic Transmission Brackets and Levers
Automatic Transmission Gate Plates
Shifter Cables, Automatic Transmission
Shifter Solenoids, Air
Shifter Sticks, Manual Transmission
Shifters, Automatic Transmission
Shifters, Manual Transmission
Transmission Components
Automatic Transmission Bands
Automatic Transmission Cases
Automatic Transmission Center Supports
Automatic Transmission Clutch Hubs
Automatic Transmission Clutch Steels
Automatic Transmission Drums
Automatic Transmission Filter Extensions
Automatic Transmission Filters, Direct Fit
Automatic Transmission Front Pump Drives
Automatic Transmission Gears
Automatic Transmission Input Shafts
Automatic Transmission Kickdown Cables
Automatic Transmission Output Shafts
Automatic Transmission Packages
Automatic Transmission Pans
Automatic Transmission Gaskets
Automatic Transmission Rebuild Components
Automatic Transmission Servo Kits
Automatic Transmission Shift Kits
Automatic Transmission Sprags
Automatic Transmission Tailhousings
Automatic Transmission Trans-Brake Solenoids
Automatic Transmission Valve Bodies
Automatic Transmissions
Bellhousing Adapters
Bellhousings
Clutch Fork Pivot Balls
Clutch Forks
Counter Balance Plates
Engine To Bellhousing Separator Plates
Flexplate Fasteners
Flexplates
Flywheel And Flexplate Dust Covers
Flywheel and Flexplate Shims and Spacers
Flywheel Counterweights
Flywheel Fasteners
Flywheel Locating Dowels
Flywheels
Manual Transmission Bearings
Manual Transmission Replacement Components
Manual Transmission Synchros
Manual Transmission Throwout Bearing Retainers
Manual Transmissions
Oil Pan Drain Plugs
Others
Pilot Bearings and Bushings
Throwout Bearings
Torque Converter Shims
Torque Converters
Transmission Fluid Dipsticks
Valve Body Replacement Components
Manual Transmission Shifter Forks
Wheel, Axle Bearings and Seals
Axle Bearings
Axle Seals
Ring and Pinion Gear Installation Kits
Ignition & Electrical
Charging Systems
Alternator Fans
Alternator One Wire Conversion Kits
Alternators and Generators
Battery Boxes
Battery Trays
Voltage Regulator and Rectifiers
Computers, Sensors & Programmers
Coolant Temperature Sensors
MAP Sensors
Oxygen Sensor Mounting Clamps
Oxygen Sensors
Throttle Position Sensors
Electrical Wiring
Distributor Wiring Harnesses
Wiring Connectors and Pigtails
Wiring Harnesses
Ignition Components
Crank Trigger Replacement Pickups
Distributor Advance Kits
Distributor Cap and Rotor Kits
Distributor Caps
Distributor Gears
Distributor Hold-Down Clamps
Distributor Replacement Parts
Distributor Rotors
Distributors
Electronic Distributor Conversion Kits
HEI Distributor Upgrade Kits
Ignition Box Mounts
Ignition Boxes
Ignition Coil Brackets
Ignition Coil Covers
Ignition Coils
Ignition Modules
Ignition RPM Module Kits
Ignition System Combo Kits
Multi Step Module Selectors
Rev Limiters
Tachometer Adapters
Timing Controllers, Electronic
Voltage Boosters
Spark Plug Wires and Accessories
Ignition Wire Looms and Separators
Spark Plug Wire Sets
Spark Plugs & Glow Plugs
Spark Plugs
Starters
Starter Bolts
Starter Drive End Blocks
Starters
Tools & Accessories
Apparel & Promotional
Banners & Flags
Catalogs & Stands
Clothing
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Keys & Keychains
Stickers
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Brake Systems
Disc Brakes
Drum Brakes
Master Cylinders & Boosters
Chassis, Steering & Suspension
Bushings & Mounts
Chassis Components
Steering Components
Suspension Components
Cooling & Heating
Air Conditioning
Fans
Oil and Fluid Coolers
Overflow Tanks & Catch Cans
Radiators and Accessories
Thermostats, Housings & Fillers
Water Pumps
Exterior & Accessories
Grilles & Grille Shells
Hoods, Tops, Body Panels, Parts & Sections
License Plates
Lights & Lenses
Mirrors, Side View & Towing
Roof Racks, Carriers, & Storage Racks
Scoops & Louvers
Truck Bed & Truck Accessories
Gaskets & Seals
Differential Gaskets & Seals
Engine Gaskets & Seals
Exhaust Gaskets & Seals
Transmission Gaskets & Seals
Gauges & Accessories
Gauges, Individual
Sending Units
Tools & Shop Equipment
Electrical & Electrical Testing Tools
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Engine-Related
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Tie-Down Straps & Tow Straps, Ropes
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Winches
Wiring & Lights
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Lug Nuts, Studs & Washers
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Miscellaneous Kits
Other Parts
Fittings & Hoses
Fittings & Plugs
Hose & Line & Tubing
Valves, Check & Shutoff
Fasteners & Hardware
Bolts
Nuts
Washers
Exhaust
Exhaust Flame Thrower Kits
Headers
Safety Equipment
Driveshaft Loops
Interior & Accessories
Door Accessories
Pedals & Pedal Pads
Steering Columns and Components
Steering Wheels
Assembly
Ignition System Combo Kits
Speedmaster El Rayo ignition system are designed for the enthusiast that is serious about performance but needs the small cap size due to space considerations when installed.
Engine Rotating Kits
Churn out all the asphalt-chewing, road-grating horsepower you want with our massive selection of rotating assemblies! SpeedmasterTM kits bring together everything you need.
Top End Kits
Speedmaster has taken the guesswork out of top-end component selection by actually placing the top end components together in complete kits. They include almost everything you need to make serious horsepower.
Fuel Injection Systems
Speedmaster™ line of EFI systems is all you need when deciding to upgrade your engine to modern electronic fuel injection. Our EFI systems provide excellent throttle response throughout the RPM range along with smooth engine operation.
Superchargers, Roots Style Kits
Speedmaster’s 6-71 Street Supercharger kits can give you 45-55 percent more streetable power. They feature double-pinned rotors (timed and clearanced after assembly), heavy duty front and rear bearing plates, and an intake manifold.
Crate Engines
Speedmaster crate engines have become a huge success all over the world. We deliver reliable horsepower, torque and drivability. We use only quality name brand parts that we trust giving our customers a superior product for their money.
Third Member Complete Assembly
Assembly has been carried out at the Speedmaster’s TDS Department by the Head differential technician. Quality is assured with 40 years experience in the Differential Industry and full involvement in all forms of motorsport from V8 SUPERCAR To Group 1 Drag Racing.
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Chevy GM LS1 Downdraft EFI Stack Intake Manifold System Complete [Polished]
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![Chevy GM LS1 Downdraft EFI Stack Intake Manifold System Complete [Polished]](https://product-arena.s3-us-west-1.amazonaws.com/Speedmaster/1-148%20Intake%20Manifolds%2C%20Fuel%20Injected/1-148-042-02/1-148-042-02.jpg?resizeid=106&resizeh=300&resizew=300)