Speedmaster PCE281.2048 Assembled Aluminum Cylinder Heads Ford SB 289 302 351 Windsor 190cc

The Speedmaster PCE281.2048 assembled aluminum cylinder heads are engineered for Ford Small Block 289, 302, and 351 Windsor engines, delivering a substantial performance upgrade over factory cast iron heads. These fully assembled heads feature 190cc intake runners and 62cc combustion chambers, optimized for hydraulic roller camshaft applications producing 400-700 horsepower.

Key Specifications:

• Combustion chamber volume: 62cc
• Intake port volume: 190cc
• Maximum valve lift: .580 inches
• Coil bind clearance: .740 inches
• Installed spring pressure: 145 lbs @ 1.900 inches (intake and exhaust)
• Valve closed seat pressure: 145 lbs
• Valve open seat pressure: 360 lbs

Features and Benefits:

• Gravity die cast aluminum construction for superior strength and uniform density
• Significantly lighter than cast iron heads, reducing front-end weight
• Optimized port cross-section increases intake velocity for improved throttle response
• Enhanced airflow capability supports big displacement builds and forced induction
• Fully assembled with valves, springs, retainers, and seals for easy installation
• Designed for hydraulic roller camshafts with modern valve train geometry

These cylinder heads utilize precision gravity die casting rather than sand casting, producing a more consistent and durable component with smoother port surfaces. The 190cc intake runners provide excellent airflow for street/strip combinations while maintaining good low-end torque characteristics. Ideal for street performance, weekend racing, and engine builds requiring proven, dyno-tested results at an affordable price point.