AFR 15° LS Cathedral Port Cylinder Head 245cc Fully CNC Ported, 73cc Chambers, Large Bore
AIRFLOW RESEARCH
SKU #AFR-1690
$3,460.80
AFR 15° LS Cathedral Port Cylinder Head 245cc Fully CNC Ported, 73cc Chambers, Large Bore
SKU
AFR-1690
Qty
AFR 15° LS Cathedral Port Cylinder Head 245cc Fully CNC Ported, 73cc Chambers, Large Bore
The AFR 15° LS Cathedral Port Cylinder Head is a high-performance race-ready cylinder head designed for the LSX platform. This head is specifically engineered for extreme applications, such as race cars or "Pro Street" builds with displacements up to 454 cubic inches. It's optimized to operate efficiently at or below 6800 RPM, providing maximum flow and power gains. With its 245cc intake port and 73cc combustion chambers, it is ideally suited for large-bore setups with a minimum bore size of 4.000". This cylinder head is CARB legal for 2005 and older emissions-controlled vehicles under CARB EO #D-250-4, making it a perfect choice for dedicated race or high-performance vehicles.
Piston Specifications
- Piston Top: Fully CNC Ported for Maximum Flow
- Approximate Compression Ratios:
- 65cc or 73cc combustion chambers
- Engine Compatibility: LSX Platform with Displacements Up to 454 Cubic Inches
- Engine Sizes Supported: Requires Minimum Bore Size of 4.000"
Technical Details
- Material: A356 Aluminum
- Intake Port Volume: 245cc
- Exhaust Port Volume: 88cc
- Combustion Chamber Size: 65cc or 73cc
- Valve Cover Bolt Pattern: Center Bolt
- Valve Angle: 15°
- Deck Thickness: .750"
- Spark Plug Dimensions: 14mm x .750" w/Tapered Seat
- CARB Status: Not Legal for Sale or Use on Emission-Controlled Vehicles (Race Use Only)
Performance & Compatibility
The AFR 15° LS Cathedral Port Cylinder Head delivers unmatched airflow with fully CNC ported combustion chambers, exhaust ports, and intake ports. The competition 5-angle valve job ensures smooth and efficient exhaust and intake flow. It features a 2.165" intake valve and a 1.600" exhaust valve, complemented by high-quality components such as PAC Racing dual valve springs, 7° titanium retainers, and Viton valve seals. This head is perfect for high-performance builds where airflow, durability, and power are critical.
AFR 15° LS Cathedral Port Cylinder Head 245cc Fully CNC Ported, 73cc Chambers, Large Bore
The AFR 15° LS Cathedral Port Cylinder Head is a high-performance race-ready cylinder head designed for the LSX platform. This head is specifically engineered for extreme applications, such as race cars or "Pro Street" builds with displacements up to 454 cubic inches. It's optimized to operate efficiently at or below 6800 RPM, providing maximum flow and power gains. With its 245cc intake port and 73cc combustion chambers, it is ideally suited for large-bore setups with a minimum bore size of 4.000". This cylinder head is CARB legal for 2005 and older emissions-controlled vehicles under CARB EO #D-250-4, making it a perfect choice for dedicated race or high-performance vehicles.
Piston Specifications
- Piston Top: Fully CNC Ported for Maximum Flow
- Approximate Compression Ratios:
- 65cc or 73cc combustion chambers
- Engine Compatibility: LSX Platform with Displacements Up to 454 Cubic Inches
- Engine Sizes Supported: Requires Minimum Bore Size of 4.000"
Technical Details
- Material: A356 Aluminum
- Intake Port Volume: 245cc
- Exhaust Port Volume: 88cc
- Combustion Chamber Size: 65cc or 73cc
- Valve Cover Bolt Pattern: Center Bolt
- Valve Angle: 15°
- Deck Thickness: .750"
- Spark Plug Dimensions: 14mm x .750" w/Tapered Seat
- CARB Status: Not Legal for Sale or Use on Emission-Controlled Vehicles (Race Use Only)
Performance & Compatibility
The AFR 15° LS Cathedral Port Cylinder Head delivers unmatched airflow with fully CNC ported combustion chambers, exhaust ports, and intake ports. The competition 5-angle valve job ensures smooth and efficient exhaust and intake flow. It features a 2.165" intake valve and a 1.600" exhaust valve, complemented by high-quality components such as PAC Racing dual valve springs, 7° titanium retainers, and Viton valve seals. This head is perfect for high-performance builds where airflow, durability, and power are critical.
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