AFR Cylinder Head Oval Port 265cc With 112cc Chamber CNC Ported For Big Block Chevrolet Engines

These AFR Oval Port Cylinder Heads (3610-1) are a cost-effective choice over reworked factory heads. They feature a partially CNC ported intake, exhaust, and chambers for improved airflow. These heads are fully assembled with premium components throughout. They are sold as a pair for your big block Chevrolet engine.

Features and Benefits:
- A356 Aluminum
- Partial CNC Porting
- Fully Assembled
- Premium Components

These heads are designed for engines that displace up to 468 cubic inches, operating up to 6200 RPM. These heads feature partial CNC porting, making them great right out of the box and a good foundation for future performance changes.

ATTENTION: THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS, AND PROOF OF CORRECTION OF THE TAMPERING.

Specifications:
- 265cc Intake Port Volume
- Stock Intake Port Location
- 132cc Exhaust Port Volume
- .375" Raised Exhaust Port Location
- 109cc Combustion Chamber Size (Partial CNC)
- 112cc Combustion Chamber Size (Full CNC)
- Perimeter Bolt Valve Cover Bolt Pattern
- 1.725" O.D Valve Spring Pocket Diameter
- 1.750" O.D Max Valve Spring Pocket Machining
- .750" Deck Thickness
- 4.125" Minimum Bore Diameter