
300-256 Split-Design Race Intake Manifold
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
- Satin 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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Intakes Designed with Racing in Mind
Holley Split-Design Race Intake Manifolds incorporate a unique feature typically reserved for high-end, custom racing intakes. These manifolds have a split design that allows the intake to be disassembled into two halves for direct access to the internal ports and plenum. The modular plane design of these intakes can accept either a carburetor or throttle body-mounted electronic fuel injection system. All Holley Split-Design Race Intake Manifolds come complete with mounting hardware, O-ring seals and shoulder bolts that hold both halves together.



