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Vehicle Info NeededHOLLEYPART NUMBER: 510-300-120
300-120 LS Dual Carburetor Intake Manifold
$61095
Ships on 09/10/2026
Lowest Price GuaranteeLS1 / LS2 / LS6Carbureted Applications Cathedral Port Runner Design
- LS Dual Carburetor Intake Manifold
- LS1/LS2/LS6 ''Cathedral'' Heads
- 4-Hole Square Bore Pad Design
- Dual Plane Design
- Cast Aluminum Finish
Carburetor Recommendations:
- 5.3-6.0 liters, stock engine street application - 390 CFM Carburetors, P/N 0-8007 (1-7/16' throttle bores, 1-1/16' venturis)
- 5.3-6.0+ liters, mildly modified engine - 465 CFM Carburetors, P/N 0-1848-1 (1-1/2' throttle bores, 1-3/32' venturis)
- 6.0+ liters, modified engine, hi-perf street/strip - 660 CFM Center-Squirter Carburetors, P/N 0-4224 (1-11/16' throttle bores, 1-1/4' primary & 1-5/16' secondary venturis)
- Carb Flange Center-To-Center: 8-5/8'
- 1-11/16' Maximum Throttle Blade Bore
- Fits GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeIntake Manifold
BrandHOLLEY
Package Height7.2
Package Width14.8
Package Length22.9
Weight19.26 PG
Part CategoryPerformance Parts
Engine Block StyleStock/OEM standard Deck
UsageStreet/Strip
Number Of CarbsTwo
Intake MaterialAluminum
PositionLower
Intake StyleDual quad
EmissionWithout EGR
QuantitySold individually
Cylinder Head TypeLS3/L92
Intake FinishNatural
Carburetor QuantityTwo
Engine Make/SizeGM LS
Intake Section IncludedComplete
Basic Operating Rpm Range1,500-7,000
EgrWithout EGR
Rpm Range1500-7000
Part FitmentSemi Universal
Intake Manifold Height4.47 in (113.538 mm)
Vendor Part Number300-120
Package Qty1
Package TypeEA
No Questions
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