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Vehicle Info NeededHOLLEYPART NUMBER: 510-300-256BK
300-256BK Split-Design Race Intake Manifold
$77995
4 left in stock
Ships on Sep 08, 2026
Lowest Price GuaranteeGM LS
Cathedral Port
Cathedral Port
- Split-Design Race Intake Manifold
- Fits GM Gen III, IV LS Engines with LS1, LS2, LS6 Cathedral Port Cylinder Heads
- Carburated Applications
- Single Plane
- 4150 Square Bore Flange
- Cast Aluminum
- Black Finish
- For Off-Road Use Only
Features:
- Performance-oriented intake with hood clearance consideration in mind
- Split design allows for easy disassembly
- Suitable for carburetor or throttle body mounted EFI system
- O-Ring seals at head ports and between split sections
- Lightweight cast aluminum construction
- For off-road use only
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.
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Part TypeIntake Manifold
BrandHOLLEY
Package Height9.9
Package Width14.5
Package Length22.9
Weight21.68 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Intake MaterialCast Aluminum
Intake StyleSingle plane
Fuel System TypeCarburetor
Port Width1.1 in (27.9 mm)
Port StyleCathedral
Intake FinishBlack
Fuel Rails IncludedNo
Engine Make/SizeGM LS
Port Height3.28 in (83.3 mm)
Throttle Body Mounting Flange4150
Rpm Range2500-7000
Intake Manifold Height7.32 in (185.928 mm)
Vendor Part Number300-256BK
Package Qty1
Package TypeEA
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