The exceptional flow characteristics, ideal operating range of idle to 5500 rpm (higher rpm ranges possible depending on combination of parts), 23° valve angle, and standard valve spacing make this the perfect street aluminum cylinder head for 327-350ci engines from 1955-86. Also available for 1987 to 1995 cast iron head engines with center bolt valve covers and 2 center intake bolts at 72° angle, AFR head p/n 033-919. No special parts are required. Dual valve cover bolt pattern is standard. Exhaust port and bolt pattern are raised 3/32'' over GM L98 cylinder heads, this rarely affects header or chassis fitment. .

180cc Eliminator Street Cylinder Head Features:

• 100% CNC Ported Combustion Chambers
• 100% CNC Ported Exhaust Ports
• 100% CNC Ported Intake Ports
• Competition 5-angle Valve Job
• 180cc Intake Ports
• 64cc Exhaust Ports
• Bead Lock Intake Valve, 2.020'' x 4.903'' Overall Valve Length
• Bead Lock Exhaust Valve, 1.600'' x 4.955'' Overall Valve Length
• PAC Racing Valve Spring: 1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs on seat, .600'' maximum lift
• 7° Manley 4140 Chrome Moly Retainers
• 7° Bead Lock Valve Keepers
• 3/8'' Rocker Studs
• Adjustable 5/16'' Guide Plates
• Viton Valve Seals
• Hardened Spring Cup
• Intake Valve Seats
• Exhaust Valve Seats
• Bronze Valve Guides
• Standard Exhaust Bolt Pattern, Accepts Factory and Aftermarket Headers
  

The AFR SBC 180cc Eliminator Street Aluminum Cylinder Heads are engineered for small block Chevy enthusiasts who want proven street performance with race-inspired airflow technology. Designed specifically for SBC applications, these 180cc cylinder heads deliver an ideal balance of port volume, combustion efficiency, and drivability. Whether you’re upgrading a 350ci street engine or building a responsive 383 stroker, AFR SBC 180cc Eliminator Street Aluminum Cylinder Heads provide the airflow and precision machining needed to unlock real horsepower gains.

Cylinder heads are one of the most critical components in any performance engine build. By improving airflow and optimizing combustion chamber design, AFR’s Eliminator series helps maximize volumetric efficiency and torque capacity across the RPM range—without sacrificing street manners.

Performance Benefits & Key Features

The AFR SBC 180cc Eliminator Street Aluminum Cylinder Heads feature precision CNC-machined intake and exhaust ports designed to enhance airflow and throttle response. Performance enthusiasts typically evaluate cylinder heads based on intake runner volume, valve sizing, combustion chamber options, deck thickness, and overall airflow performance. The 180cc runner size is well-suited for street-driven small block combinations, offering strong mid-range torque and responsive acceleration.

Constructed from high-quality aluminum, these heads provide improved heat dissipation compared to traditional iron castings, helping maintain consistent operating temperatures under load. Reduced weight also contributes to better front-end balance in classic muscle car builds. The advanced chamber design supports efficient combustion, making them compatible with a variety of camshaft profiles and compression ratios.

These heads are ideal for street performance applications, pro-touring builds, weekend cruisers, and light drag racing setups. They offer the versatility to support naturally aspirated combinations while maintaining compatibility with moderate forced induction systems when properly configured.

Fitment, Compatibility & Applications

AFR SBC 180cc Eliminator Street Aluminum Cylinder Heads are designed for small block Chevy compatibility, making them a natural fit for GM platforms such as Chevrolet Camaro, Chevelle, Nova, El Camino, and C10 trucks equipped with SBC engines.

Their standard bolt patterns and intake configurations allow seamless integration with compatible intake manifolds, valvetrain components, and rotating assemblies. Whether you’re restoring a classic muscle car or building a modernized street machine, these cylinder heads provide reliable performance with OEM-level fitment confidence.

If you’re ready to upgrade your small block Chevy with proven airflow and street-friendly performance, explore the AFR SBC 180cc Eliminator Street Aluminum Cylinder Heads at JEGS and give your engine the precision-engineered advantage it deserves.